Unit 7 Practice Test - Energy/Thermochemistry

The energy stored in the chemical bonds of a substance is known as...

• Thermal Energy

• Nuclear Radiation

• Chemical Potential Energy

• Mechanical Energy

 The amount of heat required to raise the temperature of one gram of a particular substance by 1^oC. 

• Specific Heat

• Calorimetry

• Calorimeter

• Joule

The insulated device used to measure the absorption or release of heat in a chemical or physical process.

• Thermochemistry

• Thermal Energy

• Calorimeter

• Calorimetry

The transfer of thermal energy from one object to another because of a temperature difference between them.

• Thermal Energy

• Heat

• Chemical Potential Energy

• Radioactive decay

The part of the universe on which you focus your attention

• System

• Surroundings

• Thermal Energy

• Specific Heat

The precise measure of heat flow into or out of a system during a chemical or physical process

• Heat

• Calorimetry

• Thermal Energy

• Calorimeter

A process in which energy is released from the system into the surroundings.

• Endothermic

• Exothermic

A process in which energy is absorbed into the system from the surroundings.

• Endothermic

• Exothermic

How many calories are in 67.40 kJ?

• 16.1 cal

• 282 cal

• 16,109 cal

• 282,002 cal

  Five grams of salt are dissolved into a test tube of water, causing an increase in the water temperature. What would be considered the system in this scenario?

• Salt

• Water

• Air

• Test Tube