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Determine the pressure change when a constant volume of gas at 0.850 atm is heated from 20.0C to 30.0C

User Alecco
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1 Answer

10 votes

Answer:

0.425 atm

Step-by-step explanation:

According to Ideal Gas Equation,

  • PV = nRT
  • Therefore, P ∝ T
  • P₁T₂ = P₂T₁

Given :

  • P₁ = 0.850 atm
  • T₁ = 20.0 C
  • T₂ = 30.0 C

Solving :

  • 0.85 x 30 = P₂ x 20
  • 30 x 17/20 = P₂ x 20
  • 510 = 400P₂
  • P₂ = 510/400 = 1.275 atm
  • Change in pressure = ΔP = P₂ - P₁ = 1.275 - 0.850 = 0.425 atm
User Jimbali
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