1
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Change Language
If pressure of real gas O2, in a container is given by $$p = {{RT} \over {2V - b}} - {a \over {4{b^2}}}$$, then the mass of the gas in the container is
A
32 g
B
16 g
C
4 g
D
64 g
2
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Change Language
300 g of water at 25$$^\circ$$C is added to 100 g of ice at 0$$^\circ$$C. The final temperature of the mixture is
A
12.5$$^\circ$$C
B
0$$^\circ$$C
C
25$$^\circ$$C
D
50$$^\circ$$C
3
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
An ideal gas undergoes the cyclic process abca as shown in the given p - V diagram

WB JEE 2020 Physics - Heat and Thermodynamics Question 34 English
It rejects 50J of heat during ab and absorbs 80J of heat during ca. During bc, there is no transfer of heat and 40J of work is done by the gas. What should be the area of the closed curved abca?
A
30J
B
40J
C
10J
D
90J
4
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
A container AB in the shape of a rectangular parallelopiped of length 5 m is divided internally by a movable partition P as shown in the figure.

WB JEE 2020 Physics - Heat and Thermodynamics Question 32 English
The left compartment is filled with a given mass of an ideal gas of molar mass 32 while the right compartment is filled with an equal mass of another ideal gas of molar mass 18 at same temperature. What will be the distance of P from the left wall A when equilibrium is established?
A
2.5 m
B
1.8 m
C
3.2 m
D
2.1 m
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