Question

1-Calculate the partial pressure (in atm) of H2O at equilibrium when 59.6 g of CdO and...

1-Calculate the partial pressure (in atm) of H2O at equilibrium when 59.6 g of CdO and 3.21 atm of H2 react at 800 K according to the following chemical equation:

CdO(s) + H2(g) ⇌ Cd(s) + H2O(g) Kp = 4.12×101

***Report your answer to three significant figures in scientific notation.

2-Calculate the partial pressure (in atm) of H2O at equilibrium when 1.38 atm of CH3OH and 6.77 atm of HCl react at 2000 K according to the following chemical equation:

CH3OH (g) + HCl (g) ⇌ CH3Cl (g) + H2O (g) Kp = 1.56

***Report your answer to three significant figures in scientific notation.

Homework Answers

Answer #1

1. the given reaction is

-----------------------CdO(s) + H2(g) <------> Cd(s) + H2O(g), Kp = 4.12 x 101 (please conform the value)

eqm.prss(atm): 0, -----(3.21- P0), -------- 0, ------ P0

Kp = 4.12 x 101 = P(H2O,g) / P(H2,g) = P0 / (3.21- P0)

=> P0 = 3.13x101 atm

Hence partial pressure due to H2O(g) at equilibrium = 3.13x101 atm (answer)

2: -------------------CH3OH (g) + HCl (g) <-----> CH3Cl (g) + H2O (g); Kp = 1.56

eqm.pres(atm):(1.38 - P0), (6.77 - P0) -------- P0 ------------- P0  

Kp = 1.56 = P0 x P0 / (1.38 - P0)x(6.77 - P0)

=> P0 = 1.21x101 atm

Hence partial pressure due to H2O(g) at equilibrium = 1.21x101 atm (answer)

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