Question

The ∆fH° for CO2(g) ; CO(g) and H2O (g) are -393.5, -110.5 and -241.8 KJmol-¹ respectively. The standard enthalpy change (in KJ) for the reaction: CO2(g) + H2(g) --> CO(g) + H2O(g) is​

Answer 1

Answer:

Answer

The first reaction is exothermic and the second one is endothermic. If a mixture of steam and O

2

is passed over coke and temperature is kept constant, the conversion of each to CO should not show any heat change,

i.e.,totalheatevolvedinI=totalheatabsorbedinII.

n

1

×2×110=n

2

×132

∴

n

2

n

1

=

110×2

132

=

1

0.6