NH\(_4\)Cl(s) ⇌ NH\(_3\)(g) + HCl(g) The reaction above can only attain equilibrium if

Chemistry

JAMB 2005

NH\(_4\)Cl(s) ⇌ NH\(_3\)(g) + HCl(g)
The reaction above can only attain equilibrium if

A. a gaseous reactant is added
B. one of the products is removed
C. it is in a closed system
D. it is an open system

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Your School's Whatsapp Group - Join Us now

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Correct Answer: Option C

Explanation

In a closed system, as a reaction proceeds, the concentrations of reactants and products change until the system reaches a state where the forward and reverse reactions are occurring at the same rate.

Reactions in a closed system naturally tend towards a state of equilibrium, where the rates of the forward and reverse reactions are equal, and the net change in concentrations of reactants and products is zero.

There is an explanation video available below.

Previous Next

Go back to Chem classroom

Report an Error Ask A Question Download App