15) (12 pts) Find 1° for the reaction 2H2(g) + 2C(s) + Odg-Ch1sOH(1), using the
ID: 556098 • Letter: 1
Question
15) (12 pts) Find 1° for the reaction 2H2(g) + 2C(s) + Odg-Ch1sOH(1), using the following data. GHOH (1) + 2 02 (g) 2 co, (g) + 2 HsO (I) C (s) 02 (g) CO2 (g) Ha (g1+ ½ O2 (g) H2O (1) r--875. kJ/mol AH:-394.51 kJ/mo AHs-285.8 kJ/mol 1o (17 pts) When 8.00 g of Bao) is added to 100.00 g of water in a container open to the atmosphere, the reaction shown below occurs and the temperature of the resulting solution rises from 22.00 C to 77.62°C. If the specific Acer ofthe seainoa is 4-18 JOg.°C), calculate 11°rxn for the reaction, as written. Ba(s) + 2 H2O(l) Ba(OH)2(aq) H2(g)Explanation / Answer
15)
Lets number the reaction as 0, 1, 2, 3
required reaction can be written as:
required reaction = -1 * (reaction 1) +2 * (reaction 2) +2 * (reaction 3)
So, deltaHo rxn for required reaction will be:
deltaHo rxn = -1 * deltaHo rxn(reaction 1) +2 * deltaHo rxn(reaction 2) +2 * deltaHo rxn(reaction 3)
= -1 * (-875.0) +2 * (-394.51) +2 * (-285.8)
= -485.62 KJ
Answer: -485.62 KJ
Feel free to comment below if you have any doubts or if this answer do not work
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