Question

If you know that a reaction is non-reversible, and know its change in entropy value, how can you determine its change in enthalpy?

Answer 1

To determine the change in enthalpy, you can use the equation for the change in entropy and the fact that the reaction is non-reversible. Once you have the change in entropy, you can substitute the given value and the temperature into the appropriate equation to find the change in enthalpy.

Step-by-step explanation:

To determine the change in enthalpy, you can use the equation for the change in entropy and the fact that the reaction is non-reversible. From the equation 13.4.12, we know that the change in entropy for any reversible process is the heat transferred divided by the temperature at which the process occurs. In this case, since the reaction is non-reversible, the change in entropy that you have can be calculated for a reversible process. Once you have the change in entropy, you can substitute the given value and the temperature into the appropriate equation to find the change in enthalpy.