Answer:
10.2 mol
Step-by-step explanation:
given,pressure=240kpa
volume=31L
temperature=87.65°c
req,mole=?
now we have the equation
pv=nRt
When,p=pressure
v=volume
n=moles
R=gas constant
t=temperature
gas constant(R)=8.314L.kpa/k.mol
solution
from the first equation we have an equation
n=pv/Rt
=240×31/8.314×87.65
=7440/728.72
=10.2 mol