Many chemical reactions are favored by heat.
C + 2S -> CS2 Enthalpy of formation is the change in enthalpy for the formation of a substance from its elements.
601.20 KJ/mol
-392.4 KJ/mol
The energy change that happens when a substance forms from its elements (APEX)
Cloud formation is an exothermic process because heat energy must be released to change a gas to a liquid.
heat
The standard heat/enthalpy of formation of SO2 is -296.8 KJ
would it be heat
Yes, water typically requires the addition of heat to turn into vapor. This process is known as evaporation, where the heat energy breaks the bonds between water molecules, allowing them to escape into the air as water vapor.
The heat of formation of zinc nitrate is -2304 kJ.
Heat of combustion of a hydrocarbon is based on the reaction: fuel + oxygen --> carbon dioxide + water (unless you have some nitrogen or sulfur in the fuel, in which case it gets a little more complex) The heat of formation of O2 is zero (O2 is the reference state) The heat of formation of CO2 is the same as the heat of combustion for carbon The heat of formation of H2O is the same as the heat of combustion for hydrogen To find the heat of formation of the fuel, you subtract the heat of combustion from the heats of formation - (weighted with the stoichiometric coefficients from the balanced reaction equation).
Latent heat.
Normally you'd say something about the heat of formation. Exactly what that would be depends on the results you got, which we obviously don't know.
Say u know heat of formation at temperature Ta and u want to calculate it at a temperature Tb Delta H(at Tb) = Delta H(at Ta) + integral of (Heat capacity) from Ta to Tb
Magma.
The heat of Formation of liquid Ethanol is -277 kJ/mol Source: http://en.wikipedia.org/wiki/Standard_enthalpy_change_of_formation_(data_table)
C + 2S -> CS2 Enthalpy of formation is the change in enthalpy for the formation of a substance from its elements.