Thermal Energy Review for Flashcard

Front

What is the phase change from water vapor to liquid water called?

Back

Condensation

Front

What is the amount of energy required to raise the temperature 1ºC for every gram?

Back

Specific Heat

Front

Which letter indicates where water is in both the solid and liquid phase at the same time?

Back

B

Front

What is the specific heat of aluminum?

Back

0.21 cal/g° C

Front

How much heat (Q) is released when a 10 g piece of aluminum foil cools from 100° to 50°?

Back

105 J

Front

What type of reactions usually feel hot?

Back

Exothermic

Front

What is thermal energy?

Back

The total kinetic energy of particles in a substance.

Front

What is the difference between endothermic and exothermic reactions?

Back

Endothermic reactions absorb heat; exothermic reactions release heat.

Front

What is the formula for calculating heat transfer?

Back

Q = mcΔT, where Q is heat, m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant during a phase change.