Ncert Exercises & Solutions

Based on the reactions, ascertain the valid algebraic relationship:
$(i)$ $C (g)$ $+ 4 H$ $(g)$ $\to C H_{4} (g);$
$∆ H_{r}$ $= x$ $k J$ $m o l^{- 1}$
$(i i)$ $C (g r a p h i t e)$ $+$ $2 H_{2}$ $(g)$ $\to$ $C H_{4};$
$∆ H_{r}$ $=$ $y$ $k J$ $m o l^{- 1}$