C(graphite) + O2(g) → CO2(g) + 94.05 kcal

C(diamond) + O2(g) → CO2(g) + 94.50 kcal

What could you infer from the information given above?

-The enthalpy of CO2is greater than the reactants.
-E2- E1is negative.
-Graphite and diamond have equal enthalpy.
-Diamond must have lower internal energy.

Question

C(graphite) + O2(g) → CO2(g) + 94.05 kcal

C(diamond) + O2(g) → CO2(g) + 94.50 kcal

What could you infer from the information given above?

-The enthalpy of CO2is greater than the reactants.
-E2- E1is negative.
-Graphite and diamond have equal enthalpy.
-Diamond must have lower internal energy.

anonymous · Answer

The heat exchange in chemical reactions is due to a change in:


-kinetic energy
-enthalpy
-temperature
-physical properties

thomaster · Answer

Internal energy of diamond is lower than the internal energy of graphite