Engineering Board Exam Reviewer · Thermodynamics · medium

A gas occupies 3 m3 at 100 kPa. If it is compressed isothermally to 1 m3, what is its final pressure?

  1. 33.3 kPa
  2. 100 kPa
  3. 900 kPa
  4. 300 kPa

Answer

D. 300 kPa

Solution

Boyle's law: P2 = P1V1/V2 = 100(3)/1 = 300 kPa.

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