## Thermodynamics Quiz

Important topics for Thermodynamics has been designed in such a way that it offers very practical and application-based learning to further make it easier for students to understand every concept or topic by correlating it with the day-to-day experiences.

Q1. Statement 1: In isothermal process whole of the heat energy supplied to the body is converted into internal energy Statement 2: According to the first law of thermodynamics ∆Q=∆U+P∆V :
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q2.Statement 1: The entropy of the solids is the highest Statement 2: Atoms of the solids are arranged in orderly manner :
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q3.  Statement 1: Efficiency of a Carnot engine increased on reducing the temperature of sink Statement 2: The efficiency of a Carnot engine is defined as ratio of net mechanical work done per cycle by the gas to the amount of heat energy absorbed per cycle from the source :
•   Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q4. Statement 1: First law of thermodynamics is re-statement of the principle of conservation of energy Statement 2: Energy is something fundamental
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q5. Statement 1: A reversible engine working between 127℃ and 227℃ cannot have efficiency more than 20% Statement 2: Under ideal conditions Î·=1-T_2/T_1
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q6. Statement 1: The heat supplied to a system is always equal to the increase in its internal energy Statement 2: When a system changes from one thermal equilibrium to another, some heat is absorbed by it
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
• Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q7. Statement 1: It is impossible for a ship to use the internal energy of sea water to operate its engine. Statement 2: A heat engine is different from a refrigerator. :
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q8. Statement 1: The Carnot cycle is useful in understanding the performance of heat engines Statement 2: The Carnot cycle provides a way of determining the maximum possible efficiency achievable with reservoirs of given temperatures :
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q9. Statement 1: If two bodies of equal mass and made of the same material at different temperature T_1 and T_2 are brought in thermal contact, the temperature of each body will be (T_1+T_2)/2 when thermal equilibrium is attained Statement 2: They have the same thermal capacity :
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
•  Statement 1 is False, Statement 2 is True
Solution

Q10. Statement 1: Specific heat capacity is the cause of formation of land and sea breeze. Statement 2: The specific heat of water is more than land. :
•  Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
•  Statement 1 is True, Statement 2 is False
• Statement 1 is False, Statement 2 is True
Solution

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