Chemical Engineering - Chemical Reaction Engineering - Discussion
Discussion Forum : Chemical Reaction Engineering - Section 1 (Q.No. 31)
31.
The increase in the rate of reaction with temperature is due to
Discussion:
16 comments Page 1 of 2.
THOSIN said:
12 months ago
Increase in temperature increases the average kinetic energy of the reacting molecules.
Increase in pressure increases the number of effective collisions of the reacting molecules with themselves and the walls of the containing vessel.
Addition of catalyst lowers the activation energy of the chemical reaction.
Increase in pressure increases the number of effective collisions of the reacting molecules with themselves and the walls of the containing vessel.
Addition of catalyst lowers the activation energy of the chemical reaction.
(3)
Hem said:
9 years ago
The option given is true for the catalyst as a catalyst reduce activation energy no doubt that temperature increases kinetic energy but reaction takes by the number of effective collisions (which is a fraction) implies that total KE is not utalised.
According to me, option A is correct.
According to me, option A is correct.
KRR said:
3 years ago
An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision.
Ged Eweke said:
7 years ago
The answer is "c", because if the temperature of a reactant increases, its average molecular kinetic energy of a molecule will increase and leads to increase the number of collisions between reactants.
Aashish said:
9 years ago
Yes. The answer is c because if the temperature increases that the average kinetic energy of a molecule also increased so that the collision also increase but the only fraction of molecule collides effectively.
Adarsh said:
6 years ago
Actually, the rate of reaction is mainly influenced by the rate of collisions (no of Collisions) with an increase in temperature the rate of collisions increases hence rate of reaction increases.
Dhanush P said:
1 decade ago
Activation energy decreases in the presence of catalyst but not by increasing the temperature.
Increasing the temperature increases the no of collisions.
Increasing the temperature increases the no of collisions.
Tilk tesfa said:
6 years ago
Both A and C are correct because as the temperature rises the kinetic energy of a particle rise which causes high collision between particle.
EYITAYO Joseph said:
7 years ago
Both increase in the number of effective collisions and increases in the average kinetic energy is attributable to increase in temperature.
Meenakshi said:
1 decade ago
It must be C because increase in temperature increases kinetic energy of molecules which in turn cause increase no of collisions.
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