Question

An 8.0 L of sample at 0° C and 5.6 atm of pressure contains 2.0 moles of a gas. If more 1.0 mole

of gas at the same temperature and pressure is added, calculate the final volume.​

Answer 1

20ltrs

Explanation:

pv=nrt

if 1 mole is added ot becomes 3 moles

5.6×V=3×0.082×273

V=12

final volume = 12+8=20 ltr

Answer 2

Answer:

12L

Explanation:

n=PV/RT by this equation,

total n= 2+1=3,

then,

3= 5.6*v/0.0821*273 [where,gas constant R=0.0821 and absolute temperature =0+273 ,as 0 °c=273 k

answer is 12l

I think it may help you