Question

Which of the following will occur if the average speed of the gas molecules in a closed rigid container is increased? 

(A) The density of the gas will decrease. 

(B) The density of the gas will increase. 

(C) The pressure of the gas will increase. 

(D) The pressure of the gas will decrease. 

(E) The temperature of the gas will decrease.

Answer 1

Correct option (C) The pressure of the gas will increase.

“rigid container” = constant volume. If the speed increases, the temperature will increase, and if the temperature increases at constant volume, the pressure will increase.