Question

4. Which of the following increases with increase in temperature?
a) diffusion only
b) diffusion and kinetic energy
c) diffusion, kinetic energy, vaporization d) solubility of solid in liquid, diffusion, kinetic energy ,vaporization

5. What will be the boiling point of water at hill station?
a) 100 °C
b) < 100 °C
c) > 100 °C
d) either less than 100 °C or more than 100°C PAB​

Answer 1

Answer:

4) d.

5) a. 100°C

Explanation:

these are the answers

Answer 2

Explanation:

4-C.Evaporation, diffusion, expansion of gases

As temperature increases, the kinetic energy of gases increases and now molecules will move faster than earlier hence they will have high evaporation, diffusion, expansion of gases as all these properties are directly proportional to temperature.

Solubility depends on a particular reaction, if the reaction is endothermic then solubility increases otherwise it will decrease.

5-Now we know that atmospheric pressure decreases with altitude. Thus at higher altitudes, the atmospheric pressure will be lower because of which water will boil at a temperature lower than 1000 C. Thus the correct answer is (b) < 1000 C.