Answer to Question #265570 in General Chemistry for Gayle

Question

A fire extinguisher has pressure of 150 psi at 35°C. What is the pressure in atm if the fire extinguisher is used at a temperature of 80°C?

Answer 1

P₂ = 11.7 atm

Explanation:

Converting °C to K

T₁ = 35°C + 273 = 308 K

T₂ = 80°C + 273 = 353 K

Calculating the final pressure

P₂ = P₁ • (T₂ / T₁)

P₂ = 150 psi • (353 K / 308 K)

P₂ = 171.9156 psi × (1 atm / 14.69595 psi)

P₂ = 11.7 atm