ThermochemistryHard
Question
The standard molar enthalpy of formation of CO2 is equal to
Options
A.zero
B.the standard molar enthalpy of combustion of gaseous carbon.
C.the sum of standard molar enthalpies of formation of CO and O2.
D.the standard molar enthalpy of combustion of carbon (graphite).
Solution
$C\left( \text{Graphite} \right) + O_{2}(g) \rightarrow CO_{2}(g);\Delta_{f}{H^{o}}_{CO_{2}(g)} = \Delta_{c}{H^{o}}_{C\left( \text{Graphite} \right)}$
Create a free account to view solution
View Solution FreeMore Thermochemistry Questions
In certain areas where coal is cheap, artificial gas is produced for house hold use by the ‘water gas’ reaction.C(s) + H...ΔfH° for CO2(g) and H2O(l) are −94.0 and −68.0 kcal/mol. ΔfH° for the propanoic acid is one-third of the enthalpy of com...The enthalpy of formation of methane(g) at constant pressure is −18,500 cal/mol at 27°C. The enthalpy of formation at co...The ᐃHfo for CO2(g), CO(g) and H2O(g) are - 395.5, - 110.5 and - 241.8 kJ mol-1 respectively. The standard enthalp...The factor of ΔG values is important in metallurgy. The ΔG values for the following reactions at 800o C are given as fol...