NEET 2013 (Karnataka) | Heat and Thermodynamics Question 44 | Physics

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

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

$${T_1}{T_2}$$

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

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

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

In a vessel, the gas is at pressure P. If the mass of all the molecules is halved and their speed is doubled, then the resultant pressure will be

P/2

NEET 2013

MCQ (Single Correct Answer)

-1

The amount of heat energy required to raise the temperature of 1 g of Helium at NTP, from T₁K to T₂K is

$${3 \over 4}{N_a}{k_B}\left( {{T_2} - {T_1}} \right)$$

$${3 \over 4}{N_a}{k_B}\left( {{{{T_2}} \over {{T_1}}}} \right)$$

$${3 \over 8}{N_a}{k_B}\left( {{T_2} - {T_1}} \right)$$

$${3 \over 2}{N_a}{k_B}\left( {{T_2} - {T_1}} \right)$$

NEET 2013

MCQ (Single Correct Answer)

-1

In the given (V $$-$$ T) diagram, what is the relation between pressure P₁ and P₂?

NEET 2013 Physics - Heat and Thermodynamics Question 55 English

P₂ < P₁

Carnot be predicted

P₂ = P₁

P₂ > P₁

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