Answer to Question #119121 in Chemistry for yasmin

Question

A balloon is filled with 10 L of air at a pressure of 1400 torr. What is the pressure of the balloon if the volume is changed to 5 L?

Answer 1

P₁ = 1400 torr

V₁ = 10 L

P₂ = unknown

V₂ = 5 L

Solution:

Since the temperature doesn't change, Boyle's law can be used.

Boyle's gas law can be expressed as: P₁V₁ = P₂V₂

To find the final pressure, solve the equation for P₂:

P₂ = P₁V₁ / V₂

P₂ = (1400 torr × 10 L) / (5 L) = 2800 torr

P₂ = 2800 torr

Answer: 2800 torr is the pressure of the balloon if the volume is changed to 5 L.