The corect answer is D) Reaction velocity inceases upto a certain level before decreasing
Explanation:
Reaction rate is directly proportional to the reaction temperature.If the temperature is increased the reaction rate increases and reaction rate decreases with fall in temperature.
Increase in temperature increases the entropy or randomness of the system in which the reaction is occurring.As a result the movement of reactant molecules also increases with an increase in the collision among reactant molecules.Thus reaction rateincreases with increase in temperature.
But this is true for increase in temperature upto a certain after that increase in temperature decreases the reaction rate.
From the graph, it is observed that the reaction velocity increases up to a certain temperature before decreasing. Reaction velocity is highest at 37° C and then it decreases again over time.
