Please Help

1. A reaction has a first-order rate constant of 6.2910⁵ s¹ at 25 C and 0.00164 s¹ at 79 C. What is the value of the rate constant at 57 C? Enter your answer in units of s¹, accurate to three significant figures.

2. For the elementary process below, the activation energy is 43 kJ mol¹ and the enthalpy of reaction is 22 kJ mol¹. What is E_a for the reverse process, in kJ mol¹ ? A + B AB

3. Consider the reaction A B which is endothermic in the forward direction. Which of the following increase(s) when the temperature increases.You may select more than one, or none, of the options.

		Ea(reverse)
		the reverse rate
		the forward rate
		Ea(forward)