Answer to Question #124489 in General Chemistry for Boss

Question

A balloon is filled with 11 L of helium gas at 1.33 atm. What is the pressure of the balloon if it rises to an altitude where its volume is now 188 L?

Answer 1

Solution:

This process is isothermal, so it obeys the Boyle-Marriott law.

p₁V₁ = p₂V₂ , p₂ = p₁V₁/V₂ = 1.33*1.01*10^-5Pa*1.1*10^-2m³/0.188m³=7860 Pa.

answer: 7860 Pa.