1
WB JEE 2022
+2
-0.5

One mole of an ideal monoatomic gas expands along the polytrope PV3 = constant from V1 to V2 at a constant pressure P1. The temperature during the process is such that molar specific heat $${C_V} = {{3R} \over 2}$$. The total heat absorbed during the process can be expressed as

A
$${P_1}{V_1}\left( {{{V_1^2} \over {V_2^2}} + 1} \right)$$
B
$${P_1}{V_1}\left( {{{V_1^2} \over {V_2^2}} - 1} \right)$$
C
$${P_1}{V_1}\left( {{{V_1^3} \over {V_2^2}} - 1} \right)$$
D
$${P_1}{V_1}\left( {{{V_1^{}} \over {V_2^2}} - 1} \right)$$
2
WB JEE 2021
+1
-0.25

In the given figure, 1 represents isobaric, 2 represents isothermal and 3 represents adiabatic processes of an ideal gas. If $$\Delta$$U1, $$\Delta$$U2 and $$\Delta$$U3 be the changes in internal energy in these processes respectively, then
A
$$\Delta$$U1 < $$\Delta$$U2 < $$\Delta$$U3
B
$$\Delta$$U1 > $$\Delta$$U2 < $$\Delta$$U3
C
$$\Delta$$U1 = $$\Delta$$U2 > $$\Delta$$U3
D
$$\Delta$$U1 > $$\Delta$$U2 > $$\Delta$$U3
3
WB JEE 2021
+1
-0.25
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
4
WB JEE 2021
+1
-0.25
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
WB JEE Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
EXAM MAP
Joint Entrance Examination