At 25o and 760 mm of Hg pressure a gas occupies 600 mL volume. What w

1.	At 25o and 760 mm of Hg pressure a gas occupies 600 mL volume. What will be its pressure at a height where temperature is 10o C and volume of the gas is 640 mL.
Answer» Given p₁ = 760 mm Hg V₁ = 600 mL T₁ = 25 + 273 = 298 K V₂ = 640 mL and T₂ = 10 + 273 = 283K According to combined gas law : p₁V₁/T₁ = p₂V₂/T₂ or p₂ = p₁V₁ T₂/T₁ V₂ putting values and calculating, we have p₂ = 676.6 mm Hg

At 25o and 760 mm of Hg pressure a gas occupies 600 mL volume. What will be its pressure at a height where temperature is 10o C and volume of the gas is 640 mL.

Answer»

Given p₁ = 760 mm Hg V₁ = 600 mL

T₁ = 25 + 273 = 298 K

V₂ = 640 mL and T₂ = 10 + 273 = 283K

According to combined gas law : p₁V₁/T₁ = p₂V₂/T₂

or p₂ = p₁V₁ T₂/T₁ V₂

putting values and calculating, we have p₂ = 676.6 mm Hg