1
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
For the elementary reaction M $$\to$$ N, the rate of disappearance of M increases by a factor of 8 upon doubling the concentration of M. The order of the reaction with respect to M is
A
4
B
3
C
2
D
1
2
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

X and Y are two volatile liquids with molar weights of 10 g mol$$-$$1 and 40 g mol$$-$$1, respectively. Two cotton plugs, one soaked in X and the other soaked in Y, are simultaneously placed at the ends of a tube of length L = 24 cm, as shown in the figure. The tube is filled with an inert gas at 1 atmosphere pressure and a temperature of 300 K. Vapours of X and Y react to form a product which is first observed at a distance d cm from the plug soaked in X. Take X and Y to have equal molecular diameters and assume ideal behaviour for the inert gas and the two vapours.

JEE Advanced 2014 Paper 2 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 8 English Comprehension

The value of d in cm (shown in the figure), as estimated from Graham's law, is
A
8
B
12
C
16
D
20
3
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

X and Y are two volatile liquids with molar weights of 10 g mol$$-$$1 and 40 g mol$$-$$1, respectively. Two cotton plugs, one soaked in X and the other soaked in Y, are simultaneously placed at the ends of a tube of length L = 24 cm, as shown in the figure. The tube is filled with an inert gas at 1 atmosphere pressure and a temperature of 300 K. Vapours of X and Y react to form a product which is first observed at a distance d cm from the plug soaked in X. Take X and Y to have equal molecular diameters and assume ideal behaviour for the inert gas and the two vapours.

JEE Advanced 2014 Paper 2 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 7 English Comprehension

The experimental value of d is found to be smaller than the estimate obtained using Graham's law. This is due to

A
larger mean free path for X as compared to that of Y.
B
larger mean free path for Y as compared to that of X.
C
increased collision frequency of Y with the inert gas as compared to that of X with the inert gas.
D
increased collision frequency of X with the inert gas as compared to that of Y with the inert gas.
4
JEE Advanced 2013 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1

In the reaction, P + Q $$\to$$ R + S, the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure. The overall order of the reaction is

JEE Advanced 2013 Paper 1 Offline Chemistry - Chemical Kinetics and Nuclear Chemistry Question 6 English

A
2
B
3
C
0
D
1
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