Calculating Entropy Changes in the Surroundings
Chapter 19 Slide 36 Example Calculation Consider the combustion of propane gas: C3H8(g) + 5 O2(g) produces 3 CO2(g) + 4 H2O(g) ΔHrxn = –2044 kJ a. Calculate the entropy change in the surroundings when this reaction occurs at 25 °C. b. Determine the sign of the entropy change for the system. c. Determine the sign of the entropy change for the universe. Is the reaction spontaneous?
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R1.4.1 Predict the entropy change for a given reaction or process [HL IB Chemistry]
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