1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Following are statements of a few processes taking place in nature.
I. Free expansion of a gas
II. The combustion of a mixture of petrol and air ignited by a spark
III. The leaking of gas from the kitchen cylinder.
IV. The transfer of heat from one heated part of a liquid to the other colder part.
Which amongst these processes are irreversible in nature?
A
I and II
B
I and III
C
II, III and IV
D
I, II, III and IV
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
In thermodynamic processes, which of the following statements is not true?
A
In an isothermal process, the temperature remains constant
B
In an isobaric process, the volume remains constant
C
In an adiabatic process, the system is insulated from the surroundings
D
In an adiabatic process, $PV^\gamma = $ a constant
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
The graph of pressure P and volume V of $1$ mole of an ideal gas at constant temperature is
A
B
C
D
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
A mass of $1$ kg is executing SHM. Its displacement is given by $x = 6.0\cos(100t + \pi/4)$ cm. What is the maximum kinetic energy?
A
$3$ J
B
$6$ J
C
$9$ J
D
$18$ J