Chemistry -- Gas Pressure Question?
2020-09-30 12:18 pm
What is the pressure (in bar) at which a gas of molar mass 15.2 g/mol at temperature 20.5 °C has a density of 4.67 g/L?
回答 (1)
2020-09-30 12:46 pm
✔ 最佳答案
Pressure, P = ? barDensity, m/V = 4.67 g/L
Molar mass, M = 15.2 g/mol
Temperature, T = (273.2 + 20.5) K = 293.7 K
Gas constant, R = 0.08314 L bar / (mol K)
PV = nRT and n = m/M
Then, PV = (m/M)RT
Hence, P = (m/V)RT/M
Pressure, P = 4.67 × 0.08314 × 293.7 / 15.2 bar = 7.50 bar
收錄日期: 2021-04-24 08:02:25
原文連結 [永久失效]:
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