Class XI

If CpCp and CvCv are molar specific heat capacities of an ideal gas at constant pressure and volume respectively and R is the universal gas constant, relation between the three is
  1. CpCp - CvCv = 2R
  2. CpCp + CvCv = R
  3. CpCp - CvCv = R
  4. CpCp + CvCv = 2R
In Thermodynamics Extensive variables depend
  1. on the ‘temperature’ of the system
  2. on the ‘entropy’ of the system
  3. on the ‘pressure’ of the system
  4. on the ‘size’ of the system
Adiabatic wall is –
  1. a thermally insulating wall that does not allow flow of heat from one body to another
  2. a thermally conducting wall that does not allow flow of heat from one body to many
  3. a thermally conducting wall that does not allow flow of heat from one body to another
  4. a thermally insulating wall that does allows flow of heat from one body to another
Thermodynamics is the branch of physics that deals with.
  1. the concepts of heat and dust and the inter-conversion of heat and other forms of matter
  2. the concepts of kinetic energy and temperature and the inter-conversion of mechanical and other forms of energy
  3. the concepts of heat and temperature and the inter-conversion of heat and other forms of energy
  4. the concepts of heat and noise and the inter-conversion of noise and other forms of energy
In case of isobaric process the volume of an ideal gas change the work done by the gas is given by
  1. P ΔΔV
  2. P + ΔΔV
  3. P - ΔΔV
  4. P / ΔΔV
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