For a chemical reaction A → B, the rate of reaction doubles when the concentration of A is increased four times. The order of reaction for A is
Correct answer: D. Half
- A. Zero
- B. Two
- C. One
- D. Half
Explanation
Concentration of A is quadrupled So, ratio of [A1] : [A2] = 4 Rate of reaction doubles So, ratio of rate of reaction 1 : rate of reaction 2 = 2 Order of reaction of A = n Ratio of concentrationn = Ratio of rate 4n = 2 => 41/2 = 2 n = 1/2
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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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