1
NEET 2016 Phase 2
+4
-1
The temperature inside a refrigerator is t2 oC. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be
A
$${{{t_1}} \over {{t_1} - {t_2}}}$$
B
$${{{t_1} + 273} \over {{t_1} - {t_2}}}$$
C
$${{{t_2} + 273} \over {{t_1} - {t_2}}}$$
D
$${{{t_1} + {t_2}} \over {{t_1} + 273}}$$
2
NEET 2016 Phase 2
+4
-1
A given sample of an ideal gas occupies a volume V at a pressure P and absolute temperature T. The mass of each molecule of the gas is m. Which of the following gives the density of the gas ?
A
P/(kT)
B
Pm/(kT)
C
P/(KTV)
D
mkT
3
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.
4
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
$${{400} \over {\sqrt 3 }}$$
EXAM MAP
Medical
NEET