1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A gas is allowed to expand against a constant external pressure of 2.5 bar from an initial volume 'x' L to final volume of 4.5 L. If amount of work done is 5 dm$$^3$$ bar, what is the value of 'x'?

A
2.5 L
B
4.5 L
C
6.0 L
D
1.2 L
2
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

In a process, a system performs $$238 \mathrm{~J}$$ of work on it's surrounding by absorbing $$54 \mathrm{~J}$$ of heat. What is the change in internal energy of system during this operation?

A
222 J
B
$$-$$192 J
C
54 J
D
$$-$$184 J
3
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

When $$\mathrm{x} \mathrm{kJ}$$ heat is provided to a system, work equivalent to $$\mathrm{y} \mathrm{J}$$ is done on it. What is internal energy change during this operation?

A
$$(1000 x+y) J$$
B
$$1000(\mathrm{x}+\mathrm{y}) \mathrm{J}$$
C
$$(x+1000 y) J$$
D
$$x+y$$ J
4
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the constant external pressure of an ideal gas when expanded from $$2 \times 10^{-2} \mathrm{~m}^3$$ to $$3 \times 10^{-2} \mathrm{~m}^3$$, if the work done by the gas is $$-5.09 \mathrm{~kJ}$$ ?

A
$$5.09 \times 10^5 \mathrm{Nm}^{-2}$$
B
$$1.01 \times 10^5 \mathrm{Nm}^{-2}$$
C
$$2.02 \times 10^5 \mathrm{Nm}^{-2}$$
D
$$5.60 \times 10^5 \mathrm{Nm}^{-2}$$
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