Problem: A sample of solid ammonium chloride was placed in an evacuated chamber and then heated, causing it to decompose according to the following reaction:NH4Cl(s) ⇌ NH3(g) + HCl(g)In a particular experiment, the equilibrium partial pressure of NH 3(g) in the container was 2.9 atm. Calculate the value of Kp for the decomposition of NH4Cl(s) at this temperature.

FREE Expert Solution

We are asked to calculate the value of Kp for the decomposition of NH4Cl(s) at this temperature.


Setup ICE chart: 

At equilibrium: PNH3 = 2.9 atm = x 


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Problem Details

A sample of solid ammonium chloride was placed in an evacuated chamber and then heated, causing it to decompose according to the following reaction:

NH4Cl(s) ⇌ NH3(g) + HCl(g)

In a particular experiment, the equilibrium partial pressure of NH 3(g) in the container was 2.9 atm. Calculate the value of Kp for the decomposition of NH4Cl(s) at this temperature.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Equilibrium Expressions concept. If you need more Equilibrium Expressions practice, you can also practice Equilibrium Expressions practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.