InterviewSolution
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InterviewSolution
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In the presence of acid, the initial concentration of cane sugar was reduced from 0.2 M to 0.1 M in 5 h and to 0.05 M in 10 h. The reaction must be ofA. Zero orderB. First orderC. Second orderD. Fractional order |
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Answer» Correct Answer - B `0.2 M underset(t_(1//2) = 5 hr)rarr 0.1 M underset(t_(1//2) = 5 hr)rarr0.05 M` form `0.2 M underset(t = 10 hr)rarr 0.05 M` So `t_(1//2)` is constant which is characteristic of first order reaction. Hence, `t_(1//2) prop (a)^(0)`.Correct Answer - B `0.2 M underset(t_(1//2) = 5 hr)rarr 0.1 M underset(t_(1//2) = 5 hr)rarr0.05 M` form `0.2 M underset(t = 10 hr)rarr 0.05 M` So `t_(1//2)` is constant which is characteristic of first order reaction. Hence, `t_(1//2) prop (a)^(0)`. |
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