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NEET UG Thermal Properties of Matter & Thermodynamics — practice questions — page 2

Explore 134 free Thermal Properties of Matter & Thermodynamics questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Thermal Properties of Matter & Thermodynamics questions and exercises with answers

Showing questions 31–60 of 134.

Newton's law of cooling makes the rate of heat loss proportional to the difference between:Read the answer and worked solution →The triple point of water is represented by which temperature?Read the answer and worked solution →For water, the latent heat of fusion is given as which value?Read the answer and worked solution →Which law relates the wavelength of peak emission to the temperature of a body?Read the answer and worked solution →The law relating radiated energy to temperature, proved theoretically by Boltzmann, is named after:Read the answer and worked solution →Sort the modes of transferRead the answer and worked solution →Name the expansionRead the answer and worked solution →Judge the assertion and the reasonRead the answer and worked solution →Type the thermal numbersRead the answer and worked solution →Pick it fastRead the answer and worked solution →Two systems each in thermal equilibrium with a third are in equilibrium:Read the answer and worked solution →The law about equilibrium with a third system is the:Read the answer and worked solution →The zeroth law was formulated by:Read the answer and worked solution →The zeroth law was formulated in the year:Read the answer and worked solution →The quantity equal for two systems in thermal equilibrium is:Read the answer and worked solution →A wall that does not let heat pass is called:Read the answer and worked solution →Which of these is a thermodynamic variable?Read the answer and worked solution →In an isothermal process the quantity held fixed is the:Read the answer and worked solution →For an ideal gas in an isothermal process, PV stays:Read the answer and worked solution →Gas expanding in a cylinder inside a large fixed temperature reservoir is:Read the answer and worked solution →In an isothermal expansion, the heat supplied equals the:Read the answer and worked solution →A device converting heat to work through a cyclic process is a:Read the answer and worked solution →The Kelvin-Planck statement rules out converting heat completely into:Read the answer and worked solution →The Clausius statement forbids heat flowing on its own from a body:Read the answer and worked solution →The Kelvin-Planck and Clausius statements are:Read the answer and worked solution →Rudolf Clausius is regarded as the discoverer of which law?Read the answer and worked solution →Rudolf Clausius was born in:Read the answer and worked solution →The entropy of an isolated system can never:Read the answer and worked solution →Besides thermodynamics, Clausius worked on the kinetic theory of:Read the answer and worked solution →A heat engine takes its working substance around a process that is:Read the answer and worked solution →

Worked practice questions

Newton's law of cooling makes the rate of heat loss proportional to the difference between:

  1. Bodies and stopwatches
  2. Boiling and freezing
  3. Barrels and containers
  4. Body and surroundings
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Correct answer: D. Body and surroundings

1. A hot body cools faster when the surroundings are much colder. 2. The law makes that dependence exact. 3. The rate of loss of heat is proportional to the temperature difference of the body and the surroundings. 4. So the difference is between body and surroundings. _Source: syllabus Physics Part II, Ch 10 'Thermal Properties of Matter'_

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The triple point of water is represented by which temperature?

  1. 273.16 K
  2. 173.16 K
  3. 373.16 K
  4. 573.16 K
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Correct answer: A. 273.16 K

1. At the triple point all three states coexist. 2. That point fixes one end of the absolute temperature scale. 3. The triple point of water is represented by the temperature 273.16 K. 4. The pressure there is 6.11 times ten to the minus three pascal. _Source: syllabus Physics Part II, Ch 10 'Thermal Properties of Matter'_

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For water, the latent heat of fusion is given as which value?

  1. 9.33 times ten to the four
  2. 3.33 times ten to the five
  3. 3.33 times ten to the four
  4. 9.33 times ten to the five
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Correct answer: B. 3.33 times ten to the five

1. Latent heat of fusion is the energy to melt one kilogram at the melting point. 2. For water that figure is quoted directly. 3. The latent heat of fusion for water is 3.33 times ten to the five joules per kilogram. 4. The latent heat of vaporisation is 22.6 times ten to the five. _Source: syllabus Physics Part II, Ch 10 'Thermal Properties of Matter'_

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