GATE XE (Engineering Sciences) 2012 - Question 78

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Section: Thermodynamics | Marks: 2

32 kg of oxygen is mixed with 28 kg of nitrogen at the same temperature. The gases are at the same pressure of 103 kPa before and after mixing. If R is the universal gas constant in kJ/kmol.K, the change in entropy of the mixture is

Figure for question 78, GATE XE (Engineering Sciences) 2012

  • A. 1.38R
  • B. 0.69R
  • C. R
  • D. 0.34R

Answer: A. 1.38R

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