The order of reaction of carbon tetra chloride from chloroform is:
Correct answer: B. 1.5
- A. 1
- B. 1.5
- C. 2.5
- D. Zero
Explanation
The order of a reaction is determined by the sum of the exponents of the concentration terms in the rate law. For the reaction CHCl3 + Cl2 → CCl4 + HCl, the rate law is given by: Rate = k[CHCl3][Cl2]1/2. The exponents are 1 for CHCl3 and 1/2 for Cl2. Therefore, the overall order is 1 + 1/2 = 1.5. This makes the correct answer 1.5. Option A (1) and Option C (2.5) are incorrect because the sums do not match the calculated order. Option D (Zero) is incorrect because the reaction is not zero-order, as it depends on the concentration of reactants.
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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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