Q.1
What do we get on equating the first and second TdS equations?
  • a) Cp-Cv = T*(∂T/∂p)*(∂V/∂T)
  • b) Cp-Cv = T*(∂p/∂T)*(∂V/∂T)
  • c) Cp+Cv = T*(∂p/∂T)*(∂V/∂T)
  • d) none of the mentioned
Q.2
Consider the equation Cp-Cv = -T*(∂p/∂V)(∂V/∂T)2 , which of the following is correct?
  • a) (∂V/∂T)2 is always positive
  • b) (∂p/∂V) for any substance is negative
  • c) (Cp-Cv) is always positive
  • d) all of the mentioned
Q.3
When do we have the condition Cp=Cv?
  • a) as T approaches 0K, Cp tends to approach Cv
  • b) when (∂V/∂T)=0, Cp=Cv
  • c) both of the mentioned are correct
  • d) none of the mentioned are correct
Q.4
For an ideal gas,
  • a) Cp-Cv = R
  • b) Cp-Cv = mR
  • c) Cp=Cv
  • d) all of the mentioned
Q.5
The volume expansivity and isothermal compressibility is defined as
  • a) volume expansivity = (1/V)*(∂V/∂T) at p and isothermal compressibility = (-1/V)*(∂V/∂T) at T
  • b) volume expansivity = (1/V)*(∂V/∂T) at p and isothermal compressibility = (-1/V)*(∂V/∂T) at T
  • c) volume expansivity = (1/V)*(∂V/∂T) at p and isothermal compressibility = (-1/V)*(∂V/∂T) at T
  • d) none of the mentioned
Q.6
The equation Cp-Cv = -T*(∂p/∂V)(∂V/∂T)2 can also be expressed as
  • a) Cp-Cv = T*V*(isothermal compressibility)2 / (volume expansivity)
  • b) Cp-Cv = T*V*(isothermal compressibility) / (volume expansivity)
  • c) Cp-Cv = T*V*(volume expansivity)2 / (isothermal compressibility)
  • d) Cp-Cv = T*V*(volume expansivity) / (isothermal compressibility)
Q.7
At constant entropy, the two TdS equations give us the relation
  • a) Cp+Cv = 0
  • b) Cp=Cv
  • c) Cp-Cv = mR
  • d) Cp/Cv = ɣ
Q.8
The slope of an isentrope is ____ the slope of an isotherm on p-v diagram.
  • a) less than
  • b) greater than
  • c) equal to
  • d) less than or equal to
Q.9
Work done in reversible and isothermal compression is ____ the work done in reversible and adiabatic compression.
  • a) equal to
  • b) greater than
  • c) less than
  • d) less than or equal to
Q.10
Isothermal compression requires minimum work.
  • a) true
  • b) false
Q.11
Which of the following relation gives ɣ .
  • a) 1/(isothermal compressibility *adiabatic compressibility)
  • b) isothermal compressibility * adiabatic compressibility
  • c) adiabatic compressibility / isothermal compressibility
  • d) isothermal compressibility / adiabatic compressibility
0 h : 0 m : 1 s