Question

if i have an unknown quantity of gas at a pressure of 240 kPa, a volume of 31 L and a temperature of 87.65 C how many moles of gas do i have

Answer 1

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