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Post-UTME Physics 2015 Objective — Question 14

Question 14 of 20 from the Post-UTME Screening (Post-UTME) Physics 2015 Objective paper, with the correct answer and a full explanation.

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The pressure of 760cm3 of gas initially at 120cmHg is changed at constant temperature to 76cm Hg. What is its new volume?

  • A. 481
  • B. 700
  • C. 1200Correct
  • D. 12

Explanation

By Boyle's law, P1V1=P2V2: 120x760=76xV2, giving V2=1200cm3.

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