Final Exam

Front

What is the best model of energy flow in the mantle?

Back

Model B is considered the best model of energy flow in the mantle.

Front

Classify the following reaction: Is it exothermic or endothermic?

Back

The reaction is exothermic.

Front

What type of heat transfer occurs in liquids?

Back

The type of heat transfer occurring in liquids is convection.

Front

If a copper cylinder is placed in a graduated cylinder and the volume changes from 25.0 mL to 33.6 mL, what is the volume of the copper cylinder?

Back

The volume of the copper cylinder is 8.6 mL.

Front

Balance the following reaction: ___Ag2O --> ___Ag + ___O2

Back

The balanced reaction is 2, 4, 1.

Front

Define conduction in terms of heat transfer.

Back

Conduction is the transfer of heat through direct contact between materials.

Front

Define convection in terms of heat transfer.

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

Define radiation in terms of heat transfer.

Back

Radiation is the transfer of heat in the form of electromagnetic waves.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings.