Post-UTME Physics 2005 Objective — Question 21
Question 21 of 23 from the Post-UTME Screening (Post-UTME) Physics 2005 Objective paper, with the correct answer and a full explanation.
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A gas occupies a volume of 40cm^3 at a temperature of 27 degrees C, and a pressure of 80cm Hg. What volume does it occupy at 87 degrees C and pressure 120cm Hg?
- A. 3200cm^3
- B. 320cm^3
- C. 32cm^3Correct
- D. 3.2cm^3
Explanation
Using the combined gas law: V2 = 40 x (360/300) x (80/120) = 40 x 1.2 x 0.667 = 32cm^3.
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