1. calculate the gcv of a coal sample if its lcv is 6767.45 calg and if it contains 5 hydrogen. (latent heat of steam is 587 calg). ans gcv 7031.6 calg. 2. the gross calorific value of a fuel containing 6 h was found to be 9804.6 kcalkg. find the net calorific value if the latent heat of steam is 587 calg. ans 9487.62 kcalkg.