Thermochemistry

Temperature is:

• The total energy of a system

• Measured in joules

• The average kinetic energy of a system

• The amount of moles in a system

Heat is the:

• Total kinetic energy of a system

• Average kinetic energy of a system

• Temperature of a system

• The amount of particles in a system

An exothermic process _____________ heat.

• Absorbs

• Releases

An endothermic process ____________ heat.

• Absorbs

• Releases

In an endothermic reaction, the products have _____________ energy.

• Higher

• Lower

• The same

• Equal

In an exothermic reaction, the products have ______________ energy.

• more

• less

• same

• equal

Water freezing would be an example of:

• an endothermic process

• an exothermic process

• a combustion reaction

• I hate this class, please help

Water vaporizing would be an example of:

• An endothermic process

• An exothermic process

• A solid

• Melting point

Heat flows from:

• warm objects to cold objects

• cold objects to warm objects

• heat doesn't flow

• Only cold flows

What is specific heat?

• the amount of heat needed to raise 1 gram of a substance by 1 degree celsius

• the amount of heat to heat up 1 mole of a substance

• the change in temperature

• the amount of heat needed to boil water