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Chemical equilibria, Le Chatelier’s principle and $K_c$

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Question 6

The equation for the reaction between nitrogen monoxide and oxygen is shown below.

2NO(g)+O2(g)⇌2NO2(g) 2\text{NO}(\text{g}) + \text{O}_2(\text{g}) \rightleftharpoons 2\text{NO}_2(\text{g}) 2NO(g)+O2​(g)⇌2NO2​(g)

In an experiment, 3.00 mol of nitrogen monoxide are mixed with 2.00 mol of oxygen. The total amount of the three gases at equilibrium is 4.20 mol.

What is the mole fraction of nitrogen dioxide in the equilibrium mixture?

0.190

0.320

0.381

1.600

Chemical equilibria, Le Chatelier’s principle and $K_c$ Questions

  1. A Level
  2. /Chemistry
  3. /Chemical equilibria, Le Chatelier’s principle and $K_c$