5.8. What will be the pressure of the gas mixture when 0.5 L of H2 at 0.8 bar and 2.0 L of dioxygen at 0.7 bar are introduced in all vessel at 27 °C?
5.8. What will be the pressure of the gas mixture when 0.5 L of H2 at 0.8 bar and 2.0 L of dioxygen at 0.7 bar are introduced in all vessel at 27 °C?
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1 Answer
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5.8. Calculation of partial pressure of H2 in 1L vessel:
P1= 0.8 bar, P2=? V1= 0.5 L, V2 = 1.0 L
As temperature remains constant, P1V1 = P2V2
=> (0.8 bar) (0.5 L) = P2 (1.0 L)=>P2 = 0.40 bar, i.e., PH2 = 0.40 bar
Calculation of partial pressure of O2 in 1 L vessel
P1V1 = P2V2
(0.7 bar) (2.0 L) = P2 (1L)=>P2 = 1.4 bar
=>Po2= 1.4 bar
Total pressure =PH2 + PQ2 = 0.4 bar + 1.4 bar = 1.8 bar
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