Chemical Kinetics Test

Result

Chemical Kinetics Test - 6

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

The rate constants were found to be K₁ and K₂, when a reaction was carried out at 310 K and 290 K respectively.

The two rate constants are related as:

A
K₂ = 0.25 K₁

B
K₂ = 4 K₁

C
K₁= 2 K₂

D
K₂ = 2 K₁

Solution

This option is correct because for every 10 degree rise in temprature, rate constant doubles.

Aince, T₁ = T₂ + 20

Hence, K₁ = 4 K₂

=> K₂ = 0.25 K₁

Hence, this option is correct.
Question 2
1 / -0

The rate of reaction A + B → P is given by the equation R = K [A] [B]. If B is taken in excess amount, the order of the reaction would be

A
2

B
1

C
0

D
Incomplete data

Solution

If one of the two reactants in a reactions is taken in large excess, then the concentration of that will remain practically unchanged in the course of reaction and the rate of the reactions is independent of the concentration of that reactant.

Hence, the reaction behaves as a pseudo-first order and a pseudo unimolecular reaction.