Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as
Assertion: For the reaction, \[2NO(g)+{{O}_{2}}(g)\rightleftharpoons 2N{{O}_{2}}(g),\] increase in pressure favours the formation of \[N{{O}_{2}}\] Reason: The reaction is exothermic.A) If both Assertion: and Reason: are true and the Reason: is the correct explanation of the Assertion:
B) If both Assertion: and Reason: are true but the Reason: is not the correct explanation of the Assertion:
C) If Assertion: is true but Reason: is false
D) If both Assertion: and Reason: are false
Correct Answer: B
Solution :
\[123\text{ }g/cc\] In this reaction, Number of moles of gaseous reactants, \[A(g)+B(g)\rightleftharpoons C(g)+D(g)\] Number of moles of gaseous products, \[4.5\] Since, \[6\] is less than \[9\] according to Le. ChateUer principle, increase in pressure shifts the equilibrium in forward direction, ie, more \[\frac{1}{6}\] is formed. The reaction given above is exothermic.
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