All Physical Chemistry Resources
Example Question #1 : Heat Capacity And Specific Heat
What is the specific heat capacity for a 50-gram sample of metal that increases in temperature by 10 degrees celsius when 2000 joules of energy is added?
Use the equation:
We can calculate the specific heat capacity for the unknown metal. Since we know the added heat , the mass of the sample , and the change in temperature , we can solve for .
Example Question #2 : Heat Capacity And Specific Heat
A sample of an unknown metal at is immersed in water and is allowed to reach equilibrium. If final temperature of the system is and of energy are released, what is the identity of the metal?
It is impossible to determine
Recall that the formula for specific heat is . Rearranging the equation for specific heat (c) yields
Remark: keep in mind that the release of energy and the cooling of the metal will give negative values for both and .