Question

In a closed flask of $5L,1.0g$ of $H_2$ is heated from $300$ to $600K$. Which statement is not correct?

• A. Pressure of the gas increases
• B. The rate of collision increases
• C. The number of moles of gas increases
• D. The energy of gaseous molecules increases

Answer 1

Answer: (C)

(A) The rate of collision increases. With increase in the temperature, the rate of collision increases.
(B ) The energy of gaseous molecules increases. With increase in the temperature, the energy of gaseous molecules.
(C) The number of mole of the gas remains unchanged. It is independent of temperature as mass is independent of temperature.