Question

A balloon is floating around outside your window. The temperature outside is -11 ∘C , and the air pressure is 0.700 atm . Your neighbor, who released the balloon, tells you that he filled it with 3.60 moles of gas. What is the volume of gas inside this balloon?

Answer 1

Answer : The volume of gas inside this balloon is, 110.6 L

Explanation :

Using the ideal gas equation :

PV = nRT

where,

P = Pressure of gas = 0.700 atm

V = Volume of the gas = ?

n = number of moles of gas = 3.60 moles

R = Gas constant = $0.0821L.atm/mol.K$

T = Temperature of gas = $-11^oC=273+(-11)=262K$

Putting values in above equation, we get:

$0.700atm\times V=3.60mol\times 0.0821L.atm/mol.K\times 262K\\\\n=1.642mol$

$V=110.6L$

Therefore, the volume of gas inside this balloon is, 110.6 L