# Answer on Physical Chemistry Question for mel

Question #33419

A fixed quantity of wet steam of mass 0.3kg undergoes a polytropic expansion according to the relation PV^n=c. The initial pressure is 4.5 bar and the final pressure of 2.5 bar. The initial quality is 0.8 . Calculate

a) the final qualtiy of the steam : answer 0.749

b) the work done by the steam : answer 20.75 KJ

a) the final qualtiy of the steam : answer 0.749

b) the work done by the steam : answer 20.75 KJ

Expert's answer

Dear visitor!

To solve this problem we must have value of n or c.

To solve this problem we must have value of n or c.

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