SAT Subject Test Chemistry,10 edition

(Marvins-Underground-K-12) #1
Trial   3 X 0.02 0.234
Trial 4 0.1 0.03 0.039

(A) What    is  the value   of  X?
(B) What is the order of the reaction?
(C) What is the rate constant?
(D) What would be the rate if [SO 3 ] in trial 4 were raised to 0.2?

6 . In the following diagram, which labeled arrow represents the activation energy for the
reverse reaction?


(A) A


(B) B


(C) C


(D) D


7 . The activation energy for a reaction in the forward direction is 78 kJ. The activation
energy for the same reaction in reverse is 300 kJ. If the energy of the products is 25 kJ,
then:


(A) What    is  the energy  of  the reactants?
(B) Is the forward reaction endothermic or exothermic?
(C) Is the reverse reaction endothermic or exothermic?
(D) What is the enthalpy change for the forward reaction?
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