UPSC CDS/OTA

Heat and Thermodynamics

General Studies

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Heat and Thermodynamics

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Questions

30

Time

30 min

Marks

30

Solutions

All inline

Q1Consider the following statements about temperature: 1. Temperature is a measure of the average kinetic energy of the particles in a body. 2. It determines the direction of heat flow between two bodies. Which of the statements given above is/are correct?MediumSolve →Q2Which of the following has the highest specific heat capacity?MediumSolve →Q3The zeroth law of thermodynamics deals with:MediumSolve →Q4Consider the following statements: 1. Heat is an extensive property. 2. Temperature is an intensive property. Which is/are correct?MediumSolve →Q5In a cyclic process, the change in internal energy is:MediumSolve →Q6Which law states that the entropy of the universe tends to increase?MediumSolve →Q7Match the following: List I List II 1. Absolute zero unattainable A. First law of thermodynamics 2. Energy conservation B. Second law of thermodynamics 3. Entropy increase C. Third law of thermodynamics Choose the correct match:MediumSolve →Q8Which of the following is true for a Carnot engine?MediumSolve →Q9A heat engine absorbs 2000 J from the hot reservoir and rejects 1200 J to the sink. Its efficiency is:MediumSolve →Q10The specific heat of a gas at constant pressure is greater than that at constant volume because:MediumSolve →

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