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 `mol^(-1)" "K^(-1)`]

Options

A. 0.25
B. 0.5
C. 1
D. 2

Answer

B

Explanation

PV = nRT`
rArr V/T = (nR)/(P)` = slope
`rArr P = (nR)/("slope") = (2 xx 0.0821)/(0.328) = 0.5`