Heat Transfer - Physical Chemistry

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Question

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

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Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

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Question

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

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Question

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

The heat is given off by the system, so $q = -2239 \textup{ J}$ . Similarly, work is being done by the system, so $w=-522 \textup{ J}$
$\Delta E = -522\textup{ J} -2239\textup{ J}=-2761\textup{ J}$

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Question

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

← Didn't Know|Knew It →

Question

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

← Didn't Know|Knew It →

Question

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

The heat is given off by the system, so $q = -2239 \textup{ J}$ . Similarly, work is being done by the system, so $w=-522 \textup{ J}$
$\Delta E = -522\textup{ J} -2239\textup{ J}=-2761\textup{ J}$

← Didn't Know|Knew It →

Question

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

← Didn't Know|Knew It →

Question

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

← Didn't Know|Knew It →

Question

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

The heat is given off by the system, so $q = -2239 \textup{ J}$ . Similarly, work is being done by the system, so $w=-522 \textup{ J}$
$\Delta E = -522\textup{ J} -2239\textup{ J}=-2761\textup{ J}$

← Didn't Know|Knew It →

Question

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

← Didn't Know|Knew It →

Question

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

← Didn't Know|Knew It →

Question

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

Tap to reveal answer

Answer

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

The heat is given off by the system, so $q = -2239 \textup{ J}$ . Similarly, work is being done by the system, so $w=-522 \textup{ J}$
$\Delta E = -522\textup{ J} -2239\textup{ J}=-2761\textup{ J}$

← Didn't Know|Knew It →

Knew It

Heat Transfer - Physical Chemistry

A chemical reaction is run in which of work is done by the system and the internal energy changes by . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Work is done by the system, therefore

A chemical reaction is run in which of heat is absorbed and the internal energy changes by . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Heat is absorbed by the system, therefore So done by the system.

An automobile engine provides of work to push the pistons and generates of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: The heat is given off by the system, so . Similarly, work is being done by the system, so

A chemical reaction is run in which of work is done by the system and the internal energy changes by . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Work is done by the system, therefore

A chemical reaction is run in which of heat is absorbed and the internal energy changes by . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Heat is absorbed by the system, therefore So done by the system.

An automobile engine provides of work to push the pistons and generates of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: The heat is given off by the system, so . Similarly, work is being done by the system, so

A chemical reaction is run in which of work is done by the system and the internal energy changes by . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Work is done by the system, therefore

A chemical reaction is run in which of heat is absorbed and the internal energy changes by . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Heat is absorbed by the system, therefore So done by the system.

An automobile engine provides of work to push the pistons and generates of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: The heat is given off by the system, so . Similarly, work is being done by the system, so

A chemical reaction is run in which of work is done by the system and the internal energy changes by . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Work is done by the system, therefore

A chemical reaction is run in which of heat is absorbed and the internal energy changes by . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: Heat is absorbed by the system, therefore So done by the system.

An automobile engine provides of work to push the pistons and generates of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work: The heat is given off by the system, so . Similarly, work is being done by the system, so

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?

A chemical reaction is run in which $545 \textup{ J}$ of work is done by the system and the internal energy changes by $-811\textup{ J}$ . What is the total amount of heat transferred?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Work is done by the system, therefore

$\Delta E = -545\textup{ J}$

$q = \Delta E - w$

$q=-266\textup{ J}$

A chemical reaction is run in which $466\textup{ J}$ of heat is absorbed and the internal energy changes by $212\textup{ J}$ . What is the amount of work done?

The First Law of thermodynamics states that for a system that only exchanges energy by heat or work:

$\Delta E = w + q$

Heat is absorbed by the system, therefore

$q = 466 \textup{ J}$

So $w = \Delta E - q$

$w=212\textup{ J}-466\textup{ J} = -254\textup{ J}$ done by the system.

An automobile engine provides $522\textup{ J}$ of work to push the pistons and generates $2239\textup{ J}$ of heat that must be carried away by the cooling system. What is the change in the internal energy of the engine?