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The rate of first order reaction is A->B is 6.3\times {{10}^{-6}}\,M{{s}^{-1}}. if [A] = 0.3 M what is the arye
Chemistry | Chemistry | MHTCET
The rate of first order reaction is A->B is 6.3\times {{10}^{-6}}\,M{{s}^{-1}}. if [A] = 0.3 M what is the arye

A)\,\,2.1\times {{10}^{-5}}\,{{s}^{-1}}

A)\,\,1.2\times {{10}^{-5}}\,{{s}^{-1}}

A)\,\,1.3\times {{10}^{-5}}\,{{s}^{-1}}

A)\,\,1.6\times {{10}^{-5}}\,{{s}^{-1}}

Solution: A)\,\,2.1\times {{10}^{-5}}\,{{s}^{-1}}

For 1st order reaction, we have:

Rate=K{{[A]}^{1}}

6.3\times {{10}^{-6}}=K{{(0.3)}^{1}}

Rate\text{ }constant~K=\frac{6.3\times {{10}^{-6}}}{0.3}

K=2.1\times {{10}^{-5}}\,{{s}^{-1}}

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