Moderate

The concentration of product is increasing from 30 mole/dm3 to 40mol/dm3 in 0.5 sec then rate of reaction will be _ mole dm-3 sec-1:

Correct answer: B. 20

  • A. 10
  • B. 20
  • C. 15
  • D. 25

Explanation

The rate of reaction is defines as the change in concentration of reactants or products divided by time ,hence the rate of reaction in this case is: 40-30/0.5=20 mol dm-3 s-1.

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About Reaction Kinetics

Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.

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