Question

At a constant pressure P, the plot of volume (V) as a function of temperature(T) for $2$ moles of an ideal gas gives a straight line with a slope $0.328$L $K^{-1}$. The value of P(in atm) is closest to :

[Gas constant, $R=0.0821$L atm $mo{l}^{-1}$ $K^{-1}$].

• A. $0.25$
• B. $0.5$
• C. $1.0$
• D. $2.0$

Answer 1

The correct option is B $0.5$

From Ideal Gas Equation we have,

Slope of $V$vs $T$ plot = $nR/P$

$2\times 0.0821/P=0.328$

$P=0.5atm$