A given mass of gas has a pressure of 80Nm-2 at a temperature of 47oC….

A given mass of gas has a pressure of 80Nm-2 at a temperature of 47oC. If the temperature is reduced to 27oC with the volume remaining constant, the new pressure is
  • A.
    46.0 Nm-2
  • B.
    75.0 Nm-2
  • C.
    80.0 Nm-2
  • D.
    85.3 Nm-2
  • E.
    139.4 Nm-2
Correct Answer: Option B
Explanation

P1/T1 = P2/T2
80/(273+47) = P1/(273+27) = 75Nm-2

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