GATE XE (Engineering Sciences) 2014 - Question 79

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Section: Thermodynamics | Marks: 2

For a gas obeying the equation of state given by RT v v a P = + 2 , the values of the critical volume and the critical temperature are 0.004 m3/kg and 100 °C, respectively. If the value of the gas constant is 250 J/(kg.K), then the value of the constant ‘a’ is _____________ (N.m4/kg2). Note that the critical point is the point of inflection on the critical isotherm.

  • A. 124.3
  • B. 0.75
  • C. 186.58
  • D. 248.67 Reservoir 1 T1 = 1200K Reservoir 2 T2 = 600 K Reservoir 3 T3 = 300 K Q1 Q2 Q3 E W XE (GATE 2014)

Answer: C. 186.58

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