The reaction 2H 2 O 2 (g) 2H 2 O(g)+ O 2 (g)is exothermic,ΔHº rxn = -210 kJ/mol.Which one of the following is correct?

According to Le Chatelier's principle, the equilibrium constant (K) for an exothermic reaction will decrease as temperature increases. Therefore, K P at 1200 K (higher temperature) will be smaller than K P at 800 K (lower temperature).

The reaction 2H 2 O 2 (g) 2H 2 O(g)+ O 2 (g)is exothermic,ΔHº rxn = -210 kJ/mol.Which one of the following is correct?

According to Le Chatelier's principle, the equilibrium constant (K) for an exothermic reaction will decrease as temperature increases. Therefore, K P at 1200 K (higher temperature) will be smaller than K P at 800 K (lower temperature).

Solved

The Reaction 2H₂O₂(g) 2H₂O(g)+ O₂(g)is Exothermic,ΔHº_rxn = -210 KJ/mol

Question 92

Multiple Choice

The reaction 2H₂O₂(g) 2H₂O(g) + O₂(g) is exothermic,ΔHº_rxn = -210 kJ/mol.Which one of the following is correct?

A) K_P at 800 K is smaller than K_P at 1200 K.
B) Temperature does not affect K_P
C) K_P depends only on the pressure.
D) K_P at 1200 K is smaller than K_P at 800 K.
E) K_P depends on total pressure as well as temperature.

Correct Answer: