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NOUN TMA Questions & Answers: PHY207 – Thermodynamics

Untitled 2 - NOUN TMA Questions & Answers: PHY207 - Thermodynamics

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Q1 The heat required to raise the temperature of the body through 1K is called


heat capacity


Q2 The silvered walls of a vacuum flask minimise loss of heat due to


radiation


Q3 Which of the following does not need a medium for heat transfer


radiation


Q4 What is the lowest temperature of platinum resistance thermometer?


about 20K


Q5 The heat required to change 1kg of ice at 0􀳦?􀳦C to water at the same temperature is called


specific heat capacit y of fusion


Q6 The quantity of heat required to raise the temperature of a body by one degree celcius is called the


therma l capacity


Q7 The unit of linear expansivity is


1/K


Q8 Which of the following thermometers can be used to measure a range of temperatures from -40􀳦?􀳦C to 90􀳦?􀳦C?


alcohol in glass


Q9 The normal body temperature of human beings is


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37􀳦?􀳦 C


Q10 Nm/Tm3 is the unit of


dipole moment per unit v olume


Q11 Magnetization is equal to the magnetic moment per unit —————


volum e


Q12 The magnetic ——————- of a sample is the maximum torque it experiences in unit magnetic field


dipole moment


Q13 Which of the following cooling methods is suitable for low temperature?


adiabatic de magnetization


Q14 Which of the following is not a method for temperature cooling?


locurve cooling


Q15 To cool a gas by adiabatic decompression the gas is first compressed —————–


isothermally


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Q16 Isothermal process followed by ————- process are two processes that are involved in cooling a gas


adiabatic


Q17 If no temperature change takes place in a free expansion process, the internal energy is only dependent on


Temperatu re


Q18 Which of the following coordinates does the internal energy of a gas not a function of?


media


Q19 The quantity (δ T/δ V)u is called the


Joule coefficien t


Q20 Which of the following is not a requirement for performing a continous throttling process?


low thickness

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