Chapter 9.2

Question 1

What happens to the evaporation rate when the temperature of a liquid increases?

Answer 1

More particles will have enough energy to escape.

Question 2

What occurs to the average energy of remaining particles when some escape during evaporation?

Answer 2

The average energy of remaining particles is less, causing the liquid to cool down.

Question 3

What is an example of evaporation cooling the body?

Answer 3

When we get hot, we sweat. The sweat evaporates, causing thermal energy to flow from the skin and cool down.

Question 4

What factors increase the rate of evaporation?

Answer 4

Increasing temperature, increasing surface area, and increasing wind speed.

Question 5

What are the three states of matter?

Answer 5

Solid, liquid, gas.

Question 6

Evaporate processes?

Answer 6

if the temperoture of liquid is higher more of particle will have enough energy to escape.

• When they escape, the average energy of remoining posticle is less, so the liquid cools down

Question 7

Explain if temperature increases, the evaporation rate increase?

Answer 7

If the temperature increase, the heat makes particles to move faster and particles overcome the force of attraction and evaporate to the air.

Question 8

And surface area and more wind speed?

Answer 8

As there is more area that exposed to air. ( the air overcome the force of attraction and break out.)

Question 9

Evaporation process?

Answer 9

When the temperature of liquid is higher, more of its particles will have enough energy to escape.

When the escape, the average temperature of remaining particle is less. So, the liquid cools down.

Question 10

factors of increasing rate of evaporation?

Answer 10

1. Increasing surface area.
2. Increasing temperature.
3. Increasing wind speed. ( blowing air across the surface.)