ThermochemistryMedium
Question
ᐃHfo(298K) of methanol is given by the chemical equation :
Options
A.CH4(g) + 
O2(g) → CH3OH(g)
O2(g) → CH3OH(g)B.C(graphite) + O2(g) + 2H2(g) → CH3OH(l)
O2(g) + 2H2(g) → CH3OH(l)C.C(diamond) + O2(g) + 2H2(g) → CH3OH(l)
O2(g) + 2H2(g) → CH3OH(l)D.CO(g) + 2H2(g) → CH3OH(l)
Solution
Heat of formation is defined as the heat exchange when one mole of a compound isformed from its constituent elements at STP. In case of allotrope, most stable allotrope is taken of allotrope, most stable allotrope is taken into account. Among graphite and diamond; graphite is stabler. hence, heat of formation of CH3OH represented by the eqn.
C(graphite) +O2(g) + 2H2(g) → CH3OH(l)
C(graphite) +
O2(g) + 2H2(g) → CH3OH(l)Create a free account to view solution
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