F4C4: Heat

Question 1

heat

Answer 1

energy that transfers from 1 object to another because of the temperature difference

Question 2

temperature

Answer 2

degree of hotness or coldness of an object

Question 3

heat capacity

Answer 3

the amount of heat required to raise its temperature by 1°C

Question 4

specific heat capacity

Answer 4

the amount of heat energy required to raise the temperature of 1kg of the substance by 1C or 1K

Question 5

specific latent heat of fusion

Answer 5

quantity of heat absorbed during melting / the quantity of heat released during freezing of 1kg of the substance without change in temperature

Question 6

specific latent heat of vaporisation

Answer 6

quantity of heat absorbed during boiling or the quantity of heat energy released during condensation of 1kg of the substance without change in temperature

Question 7

Boyle’s Law

Answer 7

for a fixed mass of gas at constant temperature, the pressure of gas is inversely proportional to its volume

Question 8

Charles’ Law

Answer 8

for a fixed mass of gas at constant pressure, the volume of gas is directly proportional to the absolute temperature

Question 9

Gay-Lusaac’s Law

Answer 9

for a fixed mass of gas at constant volume, the pressure of gas is directly proportional to the absolute temperature of the gas