A balloon is filled with 5 moles of helium gas. At a pressure of 1.18 atm and a temperature of 303 K, what volume will the gas occupy?

Question

Chemistry

Maurice Lang

29 January, 07:00

A balloon is filled with 5 moles of helium gas. At a pressure of 1.18 atm and a temperature of 303 K, what volume will the gas occupy?

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Leland Valdez · Answer 1

Ideal gas law: p·V = n·R·T.

p - pressure of gas; p = 1,18 atm · 101,325 kPa/atm = 119,56 kPa.

V - volume of gas.

n - amount of substance, n (He) = 5 mol.

R - universal gas constant; R = 8,314 J/K·mol.

T - temperature of gas; T (He) = 303 K.

From formula of ideal gas law: V = n·R·T / p.

V (He) = 5 mol · 8,314 J/K·mol · 303 K : 119,56 kPa.

V (He) = 105,35 dm³ = 105,35 L.