23-23 (HC) Week 5 QUizizz #1

Ice cream melting is an example of an __________ process. (heat enters the system from the surroundings)

• endothermic

• exothermic

Sweating is an __________________ process because heat is released.

• endothermic

• exothermic

Mass must always be in ________ for energy calculations.

• kilograms

• grams

• joules

• calories

What is the specific heat of water?

• 4.184 J/gC

• 1.00 cal/gC

• All of the above

• none of the above

When heat flows from system to the surroundings that is an example of an ________________ process.

• exothermic

• endothermic

Heat flows from _______ to _________.

• warm to cool

• cool to warm

The specific heat of a substance varies with the mass of a sample. True or False?

• True

• False

1 calorie = _______ Joules

• 1000

• 1

• 500

• 4.184

Samples of two different substances having the same mass always have the same heat capacity. True or False?

• True

• False

The unit for q (heat energy) can be in joules or calories. True or false?

• true

• false