1
WB JEE 2023
MCQ (More than One Correct Answer)
+2
-0  A cyclic process is shown in p-v diagram and T-S diagram. Which of the following statements is/are true?

A
1$$\to$$2 : Isobaric, 2$$\to$$3 : Isothermal.
B
3$$\to$$1 : Isochoric, 2$$\to$$3 : adiabatic.
C
Work done by the system in the complete cyclic process is non-zero.
D
The heat absorbed by the system in the complete cyclic process is non-zero.
2
WB JEE 2021
MCQ (More than One Correct Answer)
+2
-0  Consider the p - V diagram for 1 mole of an ideal monatomic gas shown in the figure. Which of the following statements is/are true?
A
The change in internal energy for the whole process is zero.
B
Heat is rejected during the process.
C
Change in internal energy for process A $$\to$$ B is $$- {3 \over 2}$$p0V0.
D
Work done by the gas during the entire process is 2p0V0.
3
WB JEE 2019
MCQ (More than One Correct Answer)
+2
-0 The initial pressure and volume of a given mass of an ideal gas with $$\left( {{{{C_p}} \over {{C_V}}} = \gamma } \right)$$, taken in a cylinder fitted with a piston, are p0 and V0 respectively. At this stage the gas has the same temperature as that of the surrounding medium which is T0. It is adiabatically compressed to a volume equal to $${{{V_0}} \over 2}$$. Subsequently the gas is allowed to come to thermal equilibrium with the surroundings. What is the heat released to the surrounding?
A
0
B
$$({2^{\gamma - 1}} - 1){{{p_0}V} \over {\gamma - 1}}$$
C
$$\gamma {p_0}{V_0}In2$$
D
$${{{p_0}V} \over {2(\gamma - 1)}}$$
4
WB JEE 2018
MCQ (More than One Correct Answer)
+2
-0 Which of the following statement(s) is/are true?

"Internal energy of an ideal gas .............."
A
decreases in an isothermal process.
B
remains constant in an isothermal process.
C
increases in an isobaric process.
D
decreases in an isobaric expansion.
WB JEE Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
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