Question

Boiling point of n hexane is 68.9 degree. Calculate the critical temperature

Answer 1

Answer:

Critical temperature

507.6 ± 0.5

Answer 2

Given :

The boiling point of n-hexane = 68.9 degree Celsius = 341.9 Kelvin

To find :

The critical temperature of n-hexane .

Solution :

According to Goldberg's rule for liquid , at absolute temperature ,

boiling point of a liquid =  two-third of the critical temperature of the liquid

then ,

      341.9 K = ( 2 / 3 ) * critical temperature

=>    critical temperature = ( 3 / 2 ) * 341.9 K

=>    critical temperature = 512.85 K = 239.85 degree Celsius

The critical temperature of n-hexane is 239.85 degree Celsius .