Problem: Consider the following system at equilibrium:2 NH3(g) ⇌ N2(g) + 3 H2(g)     ΔHrxn = 92.94 kJWhich of the following changes will shift the equilibrium to the right?I. increasing the temperatureII. decreasing the temperatureIII. increasing the volumeIV. decreasing the volumeV. removing some NH3VI. adding some NH3VII. removing some N2VIII. adding some N2A. II, IV, V, VIII B. I, III, V, VII C. I, III, VI, VIID. II, III, VI, VII E. I, IV, VI, VIII

FREE Expert Solution

We are asked which of the following changes will shift the equilibrium to the right.

2 NH3(g) ⇌ N2(g) + 3 H2(g)     ΔHrxn = 92.94 kJ


Le Chatelier’s Principle Basics

Under Equilibrium Law, when a chemical reaction shifts in the forward direction to offset changes made to its equilibrium position the product side will increase and the reactant side will decrease. 

Dynamic-Equilibrium-Forward-Direction-Counteract-Disturbed-Adjust-Moderated


Equilibrium Shift (Forward Direction)

When a chemical reaction shifts in the reverse direction to offset changes made to its equilibrium position the product side will decrease and the reactant side will increase. 

Equilibrium-shift-reverse-changing-the-conditions

Equilibrium Shift (Reverse Direction)


Analyze each : 


I. increasing the temperature


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Problem Details

Consider the following system at equilibrium:

2 NH3(g) ⇌ N2(g) + 3 H2(g)     ΔHrxn = 92.94 kJ

Which of the following changes will shift the equilibrium to the right?

I. increasing the temperature

II. decreasing the temperature

III. increasing the volume

IV. decreasing the volume

V. removing some NH3

VI. adding some NH3

VII. removing some N2

VIII. adding some N2

A. II, IV, V, VIII 

B. I, III, V, VII 

C. I, III, VI, VII

D. II, III, VI, VII 

E. I, IV, VI, VIII

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