Decomposition of H2O2

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Decomposition of H2O2

Catalase disproportionates:

2H2O2 to 2H2O + O2,

H2O2 is a powerful oxidizing agent and is potentially damaging to cells. By preventing excessive H2O2 build up Catalase allows important cellular processes which produce H2O2 as a byproduct to take place safely.

Question:I know that, in the reaction of the enzyme catalase with hydrogen peroxide, the rate of reaction should double with every 10 degrees Celsius increase in temperature. Why?
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The kinetic theory explains why the rate of chemical reactions will increase with temperature. As the temperature increases the movement of reactant molecules also increases leading to more successful collisions which result in reactions. Studies have led to a general rule of thumb which says that the rate of a reaction doubles for each 10 degree Celsius rise in temperature. The above has also been shown to be true of reaction catalysed by enzymes when other conditions, such as concentration of enzyme and substrate, are constant but it is important to remember that this will only be true ...

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