1
AP EAPCET 2025 - 22nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the values of the temperature of a body in Fahrenheit and Celsius scales are in the ratio of $13: 5$, then the temperature of the body is

A

$80^{\circ} \mathrm{F}$

B

$104^{\circ} \mathrm{C}$

C

$40^{\circ} \mathrm{C}$

D

$40^{\circ} \mathrm{F}$

2
AP EAPCET 2025 - 22nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A Carnot heat engine absorbs 600 J of heat from a source at a temperature of $127^{\circ} \mathrm{C}$ and rejects 400 J of heat to a sink in each cycle. The temperature of the sink is

A

266.7 K

B

166.7 K

C

133.3 K

D

333.3 K

3
AP EAPCET 2025 - 22nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

During adiabatic expansion, if the temperature of 3 moles of a diatomic gas decreases by $50^{\circ} \mathrm{C}$, then the work done by the gas is

( $R=$ Universal gas constant)

A

$375 R$

B

$1500 R$

C

$750 R$

D

$825 R$

4
AP EAPCET 2025 - 22nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The fundamental limitation to the coefficient of performance of a refrigerator is given by

A

First law of thermodynamics

B

Newton's law of cooling

C

Zeroth law of thermodynamics

D

Second law of thermodynamics

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