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  • The activation energy for the acid catalysed hydrolysis of sucrose is 6.22 kJ mol–1, while the activation energy is only 2.15 kJ mol–1 when hydrolysis is catalysed by the enzyme sucrase. Explain.

The activation energy for the acid catalysed hydrolysis of sucrose is 6.22 kJmol^{-1}, while the activation energy is only 2.15kJmol^{-1} when hydrolysis is catalysed by the enzyme sucrase. Explain.

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The energy required in a particular reaction mainly depends on the types of bond that needs to be broken; thus, it dictates the energy required. If the bonds are strong, the reaction requires a large sum of energy and time. These factors can be changed by the addition of a biocatalyst; enzymes are the most common type of biocatalysts. The catalyst reduces the activation energy of the reaction, thus the hydrolysis of the enzyme sucrose very less time compared to the traditional acidic hydrolysis.

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