The combustion of ethane in the presence of excess oxygen yields carbon dioxide and water: 2C2H6 (g) + 7O2 (g) . 4CO2 (g) + 6H2O (l) The value of ΔS° for this reaction is __________ J/K.

Chemical thermodynamics is the study of how heat and work relate to each other in chemical reactions and physical changes of state. It also involves a set of rules and laws that explain which processes can happen spontaneously and which need some help.  The primary goal of chemical thermodynamics is to determine the feasibility of a given transformation. It is used to predict energy exchanges in the following processes: Chemical reactions Phase changes Formation of solutions  The state functions that are most important in chemical thermodynamics are: Internal energy (U) Enthalpy... Show more

Chemical thermodynamics is the study of how heat and work relate to each other in chemical reactions and physical changes of state. It also involves a set of rules and laws that explain which processes can happen spontaneously and which need some help. 

The primary goal of chemical thermodynamics is to determine the feasibility of a given transformation. It is used to predict energy exchanges in the following processes:
Chemical reactions
Phase changes
Formation of solutions 

The state functions that are most important in chemical thermodynamics are:
Internal energy (U)
Enthalpy (H)
Entropy (S)
Gibbs free energy (G) 

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