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Order of Reaction

The rate cons...

Question

The rate constant for a reaction is $\frac{I n 2}{10} {m i n}^{- 1}$ . What will be the order of reaction and time taken to change concentration from 1 M to 0.25 M?

one, 10 min

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zero, 10 min

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one, 20 min

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two, 20 min

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Solution

The correct option is A one, 20 min
Unit of rate constant is ${m i n}^{- 1}$ . So, Its a 1st Order Reaction.

$t = \frac{2.303}{\frac{l n 2}{10}} l o g \frac{1}{0.25}$

$t = 20 m i n$

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