Unit 6 Chemistry Review

Front

What is specific heat?

Back

A measure of the energy needed to increase the average kinetic energy of the particles.

Front

What is an example of an exothermic process?

Back

Eating food.

Front

How do you calculate the mass of a substance given heat energy, temperature change, and specific heat?

Back

Use the formula: mass = heat energy / (specific heat × temperature change).

Front

Which material would have the largest change in temperature when heated with the same amount of thermal energy?

Back

The material with the lowest specific heat, which in this case is Zinc.

Front

What does temperature measure in terms of molecular motion?

Back

Average kinetic energy of molecules.

Front

What is the formula for calculating heat energy absorbed or released?

Back

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

Front

What is the specific heat of iron?

Back

0.10 J/g°C.

Front

What happens to the temperature of a substance when it absorbs heat?

Back

The temperature increases, assuming no phase change occurs.

Front

What is an endothermic process?

Back

A process that absorbs heat from the surroundings.

Front

How does the specific heat of a substance affect its temperature change when heated?

Back

Substances with lower specific heat will experience a larger temperature change when the same amount of heat is applied.