Asked by Tesla

A balloon containing 0.40 mol of a gas with a volume of 5.0 L was deflated to 1.0 L.

Which equation should you use to find the final number of moles of gas in the balloon after the deflation?

V subscript 2 equals StartFraction V subscript 1 n subscript 2 over n subscript 1 EndFraction.

n subscript 2 equals StartFraction V subscript 2 n subscript 1 over V subscript 1 EndFraction.

n subscript 2 equals StartFraction V subscript 1 n subscript 1 over V subscript 2 EndFraction.

All Answers 1

Answered by GPT-5 mini AI
Use the second equation: n2 = (V2 n1) / V1.

Reason: from PV = nRT at constant P and T, n ∝ V so n2 = n1(V2/V1).

Numerical: n2 = (1.0 L × 0.40 mol) / 5.0 L = 0.08 mol.