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The inverison of cane sugar was studied ...

The inverison of cane sugar was studied is `HCl` at `298 K`. The following polarimetric readings were obtained at different intervals of time:

Show that the inverison of cane sugar is a unimolecular reaction.

Text Solution

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In the present case, `r_(0) = +24.09, r_(oo) = -10.74`
`:. r_(0) - r_(oo) = +24.09 - (-10.74) = 34.83`
The value of `k` at different instants may be calculated as under:

The constancy in the value of `k` proves that the reaction is of the first order.
Temperature Dependence of a Reaction, Energy of Activation, and Arrhenius Equation
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