Question

Following statements are given:
(A) The average kinetic energy of a gas molecule decreases when the temperature is reduced.
(B) The average kinetic energy of a gas molecule increases with increase in pressure at constant temperature.
(C) The average kinetic energy of a gas molecule decreases with increase in volume.
(D) Pressure of a gas increases with increase in temperature at constant pressure.
(E) The volume of gas decreases with increase in temperature.
Choose the correct answer from the options given below:

• A. (A) & (D) only
• B. (A), (B) & (D) only
• C. (B) & (D) only
• D. (A), (B) & (E) only

Answer 1

Answer: (A)

(A) & (D) only

Answer 2

Because KE ∝T so A is correct, B is incorrect, statement C cannot be said, statement D is contradicting itself, statement E is incorrect (Isothermal process)
So No answer correct (Bonus)
If the statement of D would have been.
“Pressure of gas increases with increase in temperature at constant volume, “then statement D would have been correct, so in that case answer would have been ‘A’.