NEET 2013 (Karnataka) | Heat and Thermodynamics Question 51 | Physics

A system is taken from state a to state c by two paths adc and abc as shown in the figure. The internal energy at a is $${U_a} = 10\,J$$. Along the path adc the amount of heat absorbed dQ₁ $$=$$ 50 J and the work obtained dW₁ $$=$$ 20 J whereas along the path abc the heat absorbed dQ₂ = 36 J. The amount of work allong the path abc is

NEET 2013 (Karnataka) Physics - Heat and Thermodynamics Question 60 English

NEET 2013 (Karnataka) Physics - Heat and Thermodynamics Question 60 English

10 J

12 J

36 J

6 J

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Which of the following relations does not give the equation of an adiabatic process, where terms have their usual meaning?

P^{1$$-$$$$\gamma $$} T^{$$\gamma $$} = constant

PV^{$$\gamma $$} = constant

TV^{$$\gamma $$$$-$$1} = constant

P^{$$\gamma $$} T^{1$$-$$$$\gamma $$} = constant

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Two Carnot engines A and B are operated in series. The engine A receives heat from the source at temperature T₁ and rejects the heat to the sink at temperature T. The second engine B receives the heat at temperature T and rejects to its sink at temperature T₂. For what values of T the efficiencies of the two engines are equal

$${{{T_1} - {T_2}} \over 2}$$

$${T_1}{T_2}$$

$$\sqrt {{T_1}{T_2}} $$

$${{{T_1} + {T_2}} \over 2}$$

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution