1
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is not a reversible process?

A
Melting of ice
B
Conduction of heat
C
Isothermal expansion of gas
D
Adiabatic expansion of gas
2
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which one of the graphs below best illustrates the relationship between internal energy U of an ideal gas and temperature T of the gas in K?

A
AP EAPCET 2021 - 19th August Evening Shift Physics - Heat and Thermodynamics Question 20 English Option 1
B
AP EAPCET 2021 - 19th August Evening Shift Physics - Heat and Thermodynamics Question 20 English Option 2
C
AP EAPCET 2021 - 19th August Evening Shift Physics - Heat and Thermodynamics Question 20 English Option 3
D
AP EAPCET 2021 - 19th August Evening Shift Physics - Heat and Thermodynamics Question 20 English Option 4
3
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A refrigerator with coefficient of performance 0.25 releases 250 J of heat to a hot reservoir. The work done on the working substance is

A
$$\frac{100}{3}$$ J
B
150 J
C
200 J
D
50 J
4
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A vessel has 6 g of oxygen at pressure p and temperature 400 K. A small hole is made in it, so that oxygen leaks out. How much oxygen leaks out if the final pressure is p/2 and temperature is 300 K?

A
5 g
B
4 g
C
2 g
D
3 g
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