Consider the reactions given below. On the basis of these reactions find out which of the algebric relations given in options( a) to (d) is correct ? (i) C(g) + 4H(g) rarrCH_(4)(g), Delta_(r) H= x kJ mol^(-1) (ii) C( graphite, s) + 2H_(2)(g) rarrCH_(4)(g), Delta_(r)H= y kJ mol^(-1)

Consider the reactions given below. On the basis of these reactions fi

1.	Consider the reactions given below. On the basis of these reactions find out which of the algebric relations given in options( a) to (d) is correct ? (i) C(g) + 4H(g) rarrCH_(4)(g), Delta_(r) H= x kJ mol^(-1) (ii) C( graphite, s) + 2H_(2)(g) rarrCH_(4)(g), Delta_(r)H= y kJ mol^(-1)
Answer» `x=y` `x=2y` `x gt y` `x lt y` Solution :Same BONDS are FORMED in REACTION(i) and(ii) but not bounds are broken in reaction (i) whereas bondsin the reactant molecules are broken in reaction (ii) . As energyis abosrbed when bondsare broken, energyreleased in reaction (i) is greater than that in reaction (ii) ,i.e., `x gty `.