Analyze the diagram below:
The rate of the reaction in a test tube B is greater than the rate of the reaction in a test tube A. Which of the following factor could probably be the main reason for this?
The temperature of the reactants.
The rate of the reaction determines the speed by which the chemical reaction proceeds. There are several factors which affect the rate of the reaction. These factors are:
(i) The concentration of the reactant- Rate of reaction increases with increase in the concentration of the reactants.
(ii) The nature of the reactant- The state, reactivity or the solution kind of reactants also affects the rate of the reaction.
(iii)The pressure of the gases- Rate of the reaction increases with an increase in pressure of the reacting gases.
(iv) The surface area of the solids- Rate of reaction increases with an increase in the exposed surface area.
(v) The temperature of the Reaction- Rate of reaction increases with an increase in the temperature of the reaction.
(vi) A catalyst- Rate of reaction increase with the use of the positive catalyst and decreases with the use of the negative catalyst.
(vii) The Light- Rate of reaction increases if the reaction is occurring in the presence of light.
The energy and speed of the molecules of reactant increases as the temperature increases. The number of molecules with threshold energy increase which increases the number of effective collisions. Hence the rate of the reaction increases. Therefore, the reaction is faster in test tube 2 containing a hot solution and temperature is responsible for it.