Dry hydrogen is trapped by pellet of mercury in a uniform capillary tube closed at...

PHYSICS
WAEC 1990

Dry hydrogen is trapped by pellet of mercury in a uniform capillary tube closed at one end. If the length of the column of hydrogen at 27°C is 1.0m, at what temperature will the length be 1.20m?

  • A. 22.5°C
  • B. 32.4°C
  • C. 77.0°C
  • D. 87.0°C

Correct Answer: D. 87.0°C

Explanation

V1/T1
=
V2/T2

1.0/(273 + 27)
=
120/T2

T2 = 360K = 87



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