Thermochemistry Review

Front

What is the process of heat transfer that involves waves in space?

Back

Radiation

Front

What does temperature measure in terms of molecular motion?

Back

Kinetic Energy

Front

How do you calculate the change in temperature when energy is added to a substance?

Back

Use the formula Q=mc∆t.

Front

What is the specific heat of water?

Back

4.18 J/g°C

Front

What is the change in temperature when 50,000 Joules of energy is added to 200 grams of water at 25 C?

Back

63 C

Front

What is the transfer of energy between solids by direct contact called?

Back

Conduction

Front

What is the definition of thermal energy?

Back

The total kinetic energy of all the particles in a substance.

Front

What is the difference between conduction, convection, and radiation?

Back

Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.

Front

What is the formula for calculating thermal energy change?

Back

Q = mc∆t, where Q is heat energy, m is mass, c is specific heat, and ∆t is the change in temperature.

Front

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

Back

The temperature increases, assuming no phase change occurs.