Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074



Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Ammonium hydrogen sulfide decomposes on heating.

NH4HS(s) ⇄ NH3(g) + H2S(g)

If Kp for this reaction is 0.11 at 25 °C (when the partial pressures are measured in atmospheres), what is the total pressure in the flask at equilibrium?

Interpretation Introduction


The total pressure in the given reaction for the decomposition of ammonium hydrogen sulphide has to be given if Kp of the reaction is 0.11.

Concept Introduction:

Equilibrium constant in terms of pressure[Kp]: Equilibrium constant can be expressed in terms of partial pressures in atmospheres.


The activity of solid substance will not appear in equilibrium and numerically it is considered as one.




In the given reaction ammonium hydrogen sulphide is in solid state and thus its pressure can be taken as unity. There is no role of ammonium hydrogen sulphide in the equilibrium expression.

Initially only NH4HS is present and the amount of NH3andH2S will be zero.


From this it is clear that, amountofNH3=amountofH2S

Therefore total pressure will be equally distributed among NH3 and H2S

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Added sugars can be useful in meeting the high carbohydrate needs of some athletes. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

In the following diagram, designate each daughter cell as diploid (2n) or haploid (n).

Human Heredity: Principles and Issues (MindTap Course List)

Match the blood terms with the best description.

Human Biology (MindTap Course List)

What is the monomer of a nucleic acid macromolecule?

Biology: The Dynamic Science (MindTap Course List)

What cation and anion are normally excreted in the largest amounts in urine?

Chemistry for Today: General, Organic, and Biochemistry