For a particular reaction, the rate constant doubles when the temperature is rai

Question

For a particular reaction, the rate constant doubles when the temperature is raised from 300 K to 310 K. What is the activation energy (in kJ-mol^-1)? (A) -0.0596 kJ mol^-1 (B) 0.155kJ-mol^-1 (C) 53.6 kJ-mol^-1 (D) 155 kJ mol^-1 For all exothermic reactions, the activation energy for the reserve reaction is _____the activation energy of the forward reaction (A) smaller than (B) the same as (C) greater than (D) It cannot be determined from the information given. Why does the rate of reaction increase as the temperature increases? (A) The rate constant increases. (B) The rate constant decreases. (C) Activation energy increases. (D) Activation energy decreases.

Explanation / Answer

Q1.

A + B = AB

Ea = large

since they need to collide to form A-B

then, a direct collision will do, also we need high energy so choose "long - arrows"

the best answer will be "A"

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