Save ed Question 9 (5 points) Which statement best,describes the effect of conce

Question

Save ed Question 9 (5 points) Which statement best,describes the effect of concentration on the rate of a reaction? O a) Higher concentrations result in more collisions therefore increasing the rate of a reaction O b) Higher concentrations result in more effective collisions therefore increasing the rate of a reaction Oc) Higher concentrations result in less effective collisions therefore increasing the rate of a reaction 9 10 14 15 19 20 Save tatus Question 10 (5 points) The half-life in a first order reaction is always a constant.

Explanation / Answer

The answer is B.

For a reaction to proceed, the collisons should take place effectively. Increasing the concenetration increses the net collisions which further increases the probability of a collision being effective.

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