Chemistry Unit 10 FE review 25

Front

What phase change occurs when temperature remains constant while energy is absorbed?

Back

Melting

Front

How much heat is absorbed when heating 100.0 g of water from 25.0°C to 75.0°C with a specific heat of 4.18 J/g°C?

Back

20900 J

Front

In a chemical reaction that absorbs energy, where does the energy go?

Back

It is stored in the products.

Front

What happens to particle motion during vaporization?

Back

Particles spread out and move faster.

Front

In the equation q = mcΔT, what does 'c' represent?

Back

Specific heat capacity.

Front

What is the definition of specific heat capacity?

Back

The amount of heat required to raise the temperature of 1 gram of a substance by 1°C.

Front

What is the formula to calculate heat energy (q)?

Back

q = mcΔT.

Front

What is the effect of temperature on particle motion in solids?

Back

Particles vibrate in place but do not move freely.

Front

What is vaporization?

Back

The process of turning from liquid into vapor.

Front

What is condensation?

Back

The process of turning from vapor into liquid.