At what temperature will the length be 60cm?

Dry oxygen is trapped by a pellet of mercury in a uniform capillary tube which is sealed at one end. The length of the column of oxygen at 27°C is 50cm. if the pressure of the oxygen is constant, at what temperature will the length be 60cm?

A. 360.0°C
B. 240.6°C
C. 237.0°C
D. 87.0°C
E. 36°C

Correct Answer:

Option D = 87.0°C

Explanation

T1 = V1T2/V2 = 60×(273+27)/50

= 360k

= 360 – 273

= 87.0°C