Answer to Question #60122 in Physical Chemistry for joseph orobiyi

Question

4 The minimum additional energy, above the average internal energy,
which the reacting molecules must possess so that their collision result
in a reaction is known as
Kinetic energy
Threshold energy
Activation energy
Thermodynamic energy



5 The reactions with the high value of energy of activation are
Fast
Slow
Moderate
Not feasible



6 The reactions catalyzed by sunlight are called ____________ reactions
Endothermic
Exothermic
Sun-lighted
photochemical



7 In a reaction: $2A \rightarrow B + 2C$, which of the statement is true?
Rate of formation of B = Rate of disappearance of A
Rate of formation of C= Rate of formation of B
Rate of disappearance of A = Rate of formation of C
Rate of disappearance of A = Rate of formation of B