1
Question
Threshold energy (TE), internal energy of reactants (IE) and energy of activation (AE) are related as:
Threshold energy (TE), internal energy of reactants (IE) and energy of activation (AE) are related as:
Open in App
Solution
The correct option is C TE = AE + IE
For a reaction to occur, reactant molecules must collide with each other. Only those collisions result in product formation which has energy equal to or more than certain minimum energy. This energy is called the threshold energy. This implies an energy barrier between reactants and products that must be crossed before products can be formed.
The energy required for crossing the energy barrier comes from the kinetic energy of reacting molecules. Hence, the minimum extra energy over and above the average potential energy of the reactants, which must be supplied so that the reactants can cross over the energy barrier is called the activation energy (AE).
Activation energy = (Threshold energy) - (Internal energy of the reactants)AE=TE−IE
or TE=AE+IE.
Hence, option B is correct.
For a reaction to occur, reactant molecules must collide with each other. Only those collisions result in product formation which has energy equal to or more than certain minimum energy. This energy is called the threshold energy. This implies an energy barrier between reactants and products that must be crossed before products can be formed.
The energy required for crossing the energy barrier comes from the kinetic energy of reacting molecules. Hence, the minimum extra energy over and above the average potential energy of the reactants, which must be supplied so that the reactants can cross over the energy barrier is called the activation energy (AE).
Activation energy = (Threshold energy) - (Internal energy of the reactants)
AE=TE−IE
or TE=AE+IE.
Hence, option B is correct.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
