For which of the following equations is the enthapy change at `25^(@)C` and `1` atm equal to`DeltaH_(f)^(@)(CH_(3)OH,l)`

Options

A. `CO(g)+2H_(2)(g)rarrCH_(2)OH(l)`
B. `CO(g)+4H(g)+O(g)rarrCH_(3)OH(l)`
C. `CO(g)+4H(g)+O(g)rarrCH_(3)OH(l)`
D. `C` (graphite) `+2H_(2)(g)+(1)/(2)O_(2)(g)rarrCH_(3)OH(l)`

Answer

C

Explanation

From the definition of standard enthalpy change of fromation, it is the heat released during the fromation of 1 mol of a compound at `STP` from its constituting "elemet's" .