1
MHT CET 2021 22th September Morning Shift
+1
-0

The translational kinetic energy of the molecules of a gas at absolute temperature (T) can be doubled

A
by increasing $$\mathrm{T}$$ to $$4 \mathrm{~T}$$
B
by increasing $$\mathrm{T}$$ to $$2 \mathrm{~T}$$
C
by decreasing $$\mathrm{T}$$ to $$\mathrm{T} / 2$$
D
by increasing $$\mathrm{T}$$ to $$\sqrt{2} \mathrm{~T}$$
2
MHT CET 2021 22th September Morning Shift
+1
-0

A polyatomic gas $$(\gamma=4 / 3)$$ is compressed to $$\left(\frac{1}{8}\right)^{\text {th }}$$ of its volume adiabatically. If its initial pressure is $$\mathrm{P}_0$$, its new pressure will be

A
$$2 \mathrm{P}_0$$
B
$$8 \mathrm{P}_0$$
C
$$6 \mathrm{P}_0$$
D
$$16 \mathrm{P}_0$$
3
MHT CET 2021 22th September Morning Shift
+1
-0

If the temperature of the sun is doubled, the rate of energy received by the earth will be increased by a factor

A
8
B
2
C
4
D
16
4
MHT CET 2021 22th September Morning Shift
+1
-0

Which of the following statements is true?

($$\Delta \mathrm{U}=$$ increase in internal energy, $$\mathrm{dW}=$$ work done by the system)

A
In an adiabatic process $$\Delta \mathrm{U}=\mathrm{dW}$$
B
In an adiabatic process $$\Delta \mathrm{U}=-\mathrm{dW}$$
C
In an isothermal process $$\Delta \mathrm{U}=-\mathrm{dW}$$.
D
In an isothermal process $$\Delta \mathrm{U}=\mathrm{dW}$$
EXAM MAP
Medical
NEET