Energy of Phase Changes
AP Chemistry · Flashcards · Application
AP CHEMISTRY · FLASHCARDS
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QUESTION
Find the heat released by 60g of steam condensing, given
ΔH
vap
=
2260
J/g
\text{ΔH}_{\text{vap}} = 2260 \text{J/g}
ΔH
vap
=
2260
J/g
.
QUESTION
Calculate the heat absorbed by 25g of ice melting, given
ΔH
fusion
=
334
J/g
\text{ΔH}_{\text{fusion}} = 334 \text{J/g}
ΔH
fusion
=
334
J/g
.
QUESTION
Find the heat released by 60g of steam condensing, given
ΔH
vap
=
2260
J/g
\text{ΔH}_{\text{vap}} = 2260 \text{J/g}
ΔH
vap
=
2260
J/g
.
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ANSWER
135,600 J.
q
=
60
g
×
2260
J/g
=
135
,
600
J
q = 60\text{g} \times 2260\text{J/g} = 135,600\text{J}
q
=
60
g
×
2260
J/g
=
135
,
600
J
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