The value of K_p will decrease or increase with an increase in temperature, depe
ID: 539035 • Letter: T
Question
The value of K_p will decrease or increase with an increase in temperature, depending on whether the reaction is exothermic or endothermic Calcium carbonate is relatively insoluble and the dissolution reaction is endothermic: CaCO_3(s) Ca^2+ (aq) + CO^2-_3(aq). Which change in reaction condition below will shift the equilibrium to the right? A) add an acid to react with CO^2-_3 ion B) add an anion with which Ca^2+ is even less soluble than calcium carbonate C) increase the temperature D) All of these will shift reaction to the right A catalyst increases the overall rate of reaction by lowering the activation energy, E_a for A) both the forward reaction and the reverse reaction. B) neither the forward reaction nor the reverse reaction. C) only the forward reaction. D) only the reverse reaction Find the equilibrium constant for the reaction: A(g) + B(g) 2C(g) at 25 degree C when k equals 1.4 times 10^-12 M^-1 s^-1 for the reaction A(g) + B(g) rightarrow 2C(g) at 25 degree C and k equals 2.7 times 10^-13 M^-1 s^-1 for the reaction: 2C(g) rightarrow A(g) + B(g) at 25 degree C A) 3.8 times 10^-25 B) 1.7 times 10^-12 C) 1.1 times 10^-12 D) 5.2 At 25 degree C, a certain first order reaction has a rate constant equal to 1.00 times 10^-3 s^-1 and an equilibrium constant, K_C, equal to 4.18. What is the rate constant for the reverse reaction?Explanation / Answer
Ans 30. C) Increase the temperature .
As the reaction mentioned is exothermic , the enthalpy change of the reaction is positive . According to the Le Chatelier's Principle , the system at equillibrium always tries to cancel out the effect of any external factor by shifting the equillibrium right or left.
So increase in temperature shifts the equillibrium to the right .
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