Question

A sample of N2 gas occupiea 9.20 L at 21 degrees C and 0.959 atm. If the pressure is tuned to 1.15 atm at constant temperature what is the newly occupied volume

Answer 1

Q98227

Soluton :

Given; $V_i=9.20L$ $;T_i=T_f=294K; P_i=0.959atm; P_f=1.15atm$

To find: $V_f$

As number of moles stays constant;

$PV=nRT \implies PV/T=constant$

$\therefore P_iV_i/T_i=P_fV_f/T_f$

$\implies V_f=(P_iV_iT_f)/(T_iP_f)$

$=(0.959*9.2*294)/(294*1.15)$

$=7.672L$ (Answer)

Thus, newly occupied volume of $N_2$ gas sample is $7.672L$