The rapid depletion of fossil fuels has inspired extensive research in the area of alternative and renewale energy sources. Of these, hydroden is the most Contemplated fuel of the future . However cost effective production and hazard free storage are major issuses is using `H_(2)` (Note : use the data in table-1 given at the end of partA, whenever necessary.)
A cylinder contains hydrogen at a pressure of 80MPa at `25^(@)C` , Assuming ideal behaviour , Calculate the density of hydrogen in the cylinder in `Kg//m^(3)` .

Answer

(i) `DeltaG` is the max work`=-1.2 xx 10^(5)KJ`
(ii) Heat engine `=-6.9 xx 10^(4) KJ`