1
JEE Advanced 2016 Paper 1 Offline
Numerical
+3
-0
The diffusion coefficient of an ideal gas is proportional to its mean free path and mean speed. The absolute temperature of an ideal gas is increased 4 times and its pressure is increased 2 times. As a result, the diffusion coefficient of this gas increases x times. The value of x is ___________:
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2
JEE Advanced 2016 Paper 1 Offline
MCQ (Single Correct Answer)
+3
-1
One mole of an ideal gas at 300 K in thermal contact with surroundings expands isothermally from 1.0 L to 2.0 L against a constant pressure of 3.0 atm. In this process, the change in entropy of surrounding ($$\Delta$$Ssurr)in JK–1 is (1L atm = 101.3 J)
A
5.763
B
1.013
C
– 1.013
D
– 5.763
3
JEE Advanced 2016 Paper 1 Offline
Numerical
+3
-0
The mole fraction of a solute in a solution is 0.1. At 298 K, molarity of this solution is the same as its molality. Density of this solution at 298 K is 2.0 g cm–3 . The ratio of the molecular weights of the solute and solvent, $$\left( {{{M{W_{solute}}} \over {M{W_{solvent}}}}} \right)$$, is
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4
JEE Advanced 2016 Paper 1 Offline
MCQ (More than One Correct Answer)
+4
-2
According to the Arrhenius equation,
A
a high activation energy usually implies a fast reaction
B
rate constant increases with increase in temperature. This is due to a greater number of collisions whose energy exceeds the activation energy
C
higher the magnitude of activation energy, stronger is the temperature dependence of the rate constant.
D
the pre-exponential factor is a measure of the rate at which collisions occur, irrespective of their energy.
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