Question

Select one correct statement. In the gas equation, $PV=nRT$

• A. $n$ is the number of molecules of a gas.
• B. $n$ moles of the gas have a volume $V$.
• C. $V$ denotes volume of one mole of the gas.
• D. $P$ is the pressure if the gas when only one mole of gas is present.

Answer 1

The correct option is B $n$ moles of the gas have a volume $V$.

PV = nRT

where P= pressure of the gas;

V=volume of the gas;

n= Number of Moles;

T=Absolute temperature;

R=Ideal Gas constant also known as Boltzmann Constant = 0.082057 L atm K${}^{-1}$ mol${}^{-1}$.

Here V ∝ n

Hence, V is the volume of n moles of gas

Hence, the correct option is $\text{B}$