Question 1
For the chemical reaction A → C, a plot of 1/[A]
t versus time was found to give a straight line with a positive slope. What is the order of reaction?
◦ zeroth
◦ first
◦ second
◦ Such a plot cannot reveal the order of the reaction.
Question 2
For the chemical reaction system described by the diagram below, which statement is true?
◦ The forward reaction is endothermic.
◦ The activation energy for the forward reaction is greater than the activation energy for the reverse reaction.
◦ At equilibrium, the activation energy for the forward reaction is equal to the activation energy for the reverse reaction.
◦ The activation energy for the reverse reaction is greater than the activation energy for the forward reaction.
◦ The reverse reaction is exothermic.
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