Chemistry 11D Review

What is the formula for calculating heat capacity?

• Q = mcΔT

• Q = mc

• Q = mc^2

• Q = mΔT

What is the SI unit of specific heat capacity?

• J/g·K

• J/m·K

• J/L·K

• J/kg·K

If a substance has a high specific heat capacity, does it require more or less heat to raise its temperature?

• more

• no heat is required

• the same amount

• less

A 500 g piece of metal absorbs 2500 J of heat energy. What is the temperature change of the metal if its specific heat capacity is 0.5 J/g°C?

• 10°C

• 20°C

• 15°C

• 5°C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If two objects at different temperatures come into contact, heat will flow from the object with higher temperature to the object with lower temperature. True or False?

• Heat will flow randomly between objects at different temperatures

• Heat will not flow between objects at different temperatures

• False

• True

Tags

NGSS.HS-PS3-4

A 100 g sample of water is heated from 20°C to 80°C. How much heat energy is absorbed by the water if its specific heat capacity is 4.18 J/g°C?

• 25080 J

• 4180 J

• 418 J

• 104.2 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

What does the specific heat capacity of a substance indicate?

• The amount of heat required to change its state

• The amount of heat required to raise its temperature by 1 degree Celsius

• The amount of heat it can absorb before melting

• The amount of heat it can release when cooled

Which of the following substances would have a higher specific heat capacity?

• A substance that heats up quickly

• A substance that cools down quickly

• A substance that takes a long time to heat up

• A substance that takes a long time to cool down

What is the amount of heat energy absorbed by a 300 g piece of metal if its specific heat capacity is 0.4 J/g°C and the temperature change is 15°C?

• 1800 J

• 2000 J

• 2200 J

• 2400 J

Tags

NGSS.HS-PS3-1

What is the specific heat capacity of a substance that requires 5000 J to heat 100 g from 20°C to 30°C?

• 0.5 J/g°C

• 5 J/g°C

• 50 J/g°C

• 500 J/g°C

Tags

NGSS.HS-PS3-4