1
NEET 2022 Phase 2
+4
-1

An ideal gas follows a process described by the equation $$P{V^2} = C$$ from the initial $$({P_1},\,{V_1},\,{T_1})$$ to final $$({P_2},\,{V_2},\,{T_2})$$ thermodynamic states, where C is a constant. Then

A
If $${P_1} > {P_2}$$ then $${V_1} > {V_2}$$
B
If $${P_1} > {P_2}$$ then $${T_1} < {T_2}$$
C
If $${V_2} > {V_1}$$ then $${T_2} > {T_1}$$
D
If $${V_2} > {V_1}$$ then $${T_2} < {T_1}$$
2
NEET 2022 Phase 2
+4
-1

Two rods one made of copper and other made of steel of same length and same cross sectional area are joined together. The thermal conductivity of copper and steel are 385 J s$$-$$1 K$$-$$1 m$$-$$1 and 50 J s$$-$$1 K$$-$$1 m$$-$$1 respectively. The free ends of copper and steel are held at 100$$^\circ$$C and 0$$^\circ$$C respectively. The temperature at the junction is, nearly :

A
$$88.5^\circ C$$
B
$$12^\circ C$$
C
$$50^\circ C$$
D
$$73^\circ C$$
3
NEET 2022 Phase 2
+4
-1

Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains helium (monoatomic), the second contains fluorine (diatomic) and the third contains sulfur hexafluoride (polyatomic). The correct statement, among the following is :

A
The root mean square speed of sulfur hexafluoride is the largest
B
All vessels contain unequal number of respective molecules
C
The root mean square speed of molecules is same in all three cases
D
The root mean square speed of helium is the largest
4
NEET 2022 Phase 1
+4
-1

An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric and isochoric. The curve which represents the adiabatic process among 1, 2, 3 and 4 is A
1
B
2
C
3
D
4
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Physics
Mechanics
Electricity
Optics
Modern Physics
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