Worksheets17.3: Heat in changes of State
Total questions: 12
Worksheet time: 11mins
The heat absorbed by one mole of a solid substance as it melts to a liquid at a constant temperature.
Molar heat of fusion.
Molar heat of solidification.
Molar heat of vaporization.
· The heat lost when one mole of a liquid substance solidifies at a constant temperature.
Molar heat of solidification.
Molar heat of vaporization.
Molar heat of fusion.
The quantity of heat absorbed by a melting solid is different from the quantity of heat released when the liquid solidifies .
True
False
16.7 kJ
2.16 kJ
150 kJ
A liquid that absorbs heat at its boiling point becomes…………….
a vapor
a liquid
a solid
The amount of heat required to vaporize one mole of a given liquid at a constant temperature is called its ..........................
molar heat of vaporization.
molar heat of fusion.
molar heat of solidification.
Condensation is the exact opposite of vaporization.
True
False
When a vapor condenses, heat is absorbed.
True
False
The …………………………... is the amount of heat released when one mole of a vapor condenses at its normal boiling point.
molar heat of condensation
molar heat of fusion.
molar heat of solidification.
The quantity of heat absorbed by a vaporizing liquid is exactly the same as the quantity of heat released when the vapor condenses.
True
False
56.1kJ
29.5 kJ
40.7 kJ
-30.1 kJ
-65.7 kJ
-0.05 kJ
