1
NEET 2016 Phase 1
+4
-1
A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then
A
Compressing the gas isothermally or adiabatically will require the same amount of work.
B
Which of the case (whether compression through isothermal or through adiabatic process) requires more work will depend upon the atomicity of the gas.
C
Compressing the gas isothermally will require more work to be done.
D
Compressing the gas through adiabatic process will require more work to be done.
2
NEET 2016 Phase 1
+4
-1
The molecules of a given mass of a gas have r.m.s. velocity of 2000 m s$$-$$1 at 27oC and 1.0 $$\times$$ 105 N m$$-$$2 pressure. When the temperature and pressure of the gas are respectively, 127oC and 0.05 $$\times$$ 105 N m$$-$$2, the r.m.s. velocity of its molecules in m s$$-$$1 is
A
$${{100\sqrt 2 } \over 3}$$
B
$${{100} \over 3}$$
C
$$100\sqrt 2$$
D
$${{400} \over {\sqrt 3 }}$$
3
NEET 2016 Phase 1
+4
-1
A refrigerator works between 4oC and 30oC. It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is (Take 1 cal = 4.2 Joules)
A
236.5 W
B
2365 W
C
2.365 W
D
23.65 W
4
AIPMT 2015
+4
-1
An ideal gas is compressed to half its initial volume by means of several processes. Which of the process results in the maximum work done on the gas ?
A
Isochoric
B
Isothermal
C
D
Isobaric
EXAM MAP
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