Thermo

What happens to heat when two objects at different temperatures come into contact?

• Heat moves from the cooler object to the warmer object.

• Heat moves from the warmer object to the cooler object.

• Heat remains constant in both objects.

• Heat disappears completely.

What is the law of conservation of energy?

• Energy is always destroyed in chemical reactions.

• Energy can neither be created nor destroyed, only converted.

• Energy can only be created, not destroyed.

• Energy can be created and destroyed.

How many chemistry calories are in one food calorie?

• 500

• 1000

• 100

• 10

What is a calorimeter used for?

• Measuring the speed of chemical reactions.

• Measuring the amount of heat absorbed or released.

• Measuring the weight of chemical substances.

• Measuring the color change in reactions.

What is specific heat?

• The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

• The amount of heat required to evaporate a substance.

• The amount of heat required to melt a substance.

• The amount of heat required to freeze a substance.