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Question 5 (1 point) For the following reaction at equilibrium, which choice gives a change that will shift the position of equilibrium to favor products? CuO(s) + H2(g) H2O(g) + Cu(s); = -2.0 kJ/mol increase the temperature add some Cu(s) decrease the temperature remove some CuO(s)

Answer 1

5) As it is an exothermic reaction because enthalpy change is negative and so according to Le chatlier priciple if we disturb any equilibrium then equilibrium will try to go in that direction where the change can be nullified .

A)increase in temperature for an exothermic reaction will result in equilibrium to go in left direction hence false statement

B) Adding some Cu means adding on product side and hence to decrease this amount the reaction will go in backward direction so false

C ) Decrease in temperature for exothermic reaction will push it in forward direction and so true statement

D)Removing some CuO means reactant concentration is decreasing so as to increase the concentration reaction will go in backward so false