Final answer:
To calculate the entropy change for a chemical system, use the formula ΔS = S2 - S1, where S2 is the entropy at the final temperature and S1 is the entropy at the initial temperature.
Step-by-step explanation:
The entropy change for a chemical system can be calculated using the formula:
ΔS = S2 - S1
where ΔS is the change in entropy, S2 is the entropy at the final temperature (317 K), and S1 is the entropy at the initial temperature (298.15 K).
To calculate the entropy change, you'll need the values of the standard entropies for the reactants and products involved in the chemical system. These values can be found in standard entropy tables or databases.