What is the volume of flask B?
2016-06-22 9:02 pm
You have a sample of CO2 in flask A with a volume of 25.0 mL. At 21.3 °C, the pressure of the gas is 397.8 mm Hg . To find the volume of another flask, B, you move the CO2 to that flask and find that its pressure is now 92.3 mm Hg at 24.7 °C. What is the volume of flask B?
回答 (2)
2016-06-22 9:10 pm
CO₂ in flask A : P₁ = 397.8 mm Hg, V₁ = 25.0 mL, T₁ = (273.2 + 21.3) K = 294.5 K
Move CO₂ to flask B : P₂ = 92.3 mmHg, V₂ = ? mL, T₂ = (273.2 + 24.7) K = 297.9 K
For a fixed amount of gas :
P₁V₁/T₁ = P₂V₂/T₂
V₂ = V₁ × (P₁/P₂) × (T₂/T₁)
Volume of flask B = (25.0 mL) × (397.8/92.3) × (297.9/294.5) = 109 mL
Move CO₂ to flask B : P₂ = 92.3 mmHg, V₂ = ? mL, T₂ = (273.2 + 24.7) K = 297.9 K
For a fixed amount of gas :
P₁V₁/T₁ = P₂V₂/T₂
V₂ = V₁ × (P₁/P₂) × (T₂/T₁)
Volume of flask B = (25.0 mL) × (397.8/92.3) × (297.9/294.5) = 109 mL
2016-06-22 9:02 pm
hate chemitsty
收錄日期: 2021-04-18 15:10:16
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