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Author Question: Solid NaHCO3 is heated to 90C. At equilibrium the total pressure of the gases produced is 0.545 atm. ... (Read 53 times)

Themember4

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on: Feb 15, 2020

Question 1

At high temperatures, boron carbide vaporizes according to

B4C(s) ⇌ 4 B(g) + C(s)


At 2500 K, the equilibrium pressure of B(g) is 0.0342 mm Hg over a mixture of 0.300 mol B4C(s) and 0.500 mol C(s). Calculate ΔG° for this process.
◦ 281 kJ
◦ 799 kJ
◦ 832 kJ
◦ 247 kJ

Question 2

Solid NaHCO3 is heated to 90°C. At equilibrium the total pressure of the gases produced is 0.545 atm. Calculate ΔG° at 90°C for the reaction

2 NaHCO3(s) ⇌ Na2CO3(s) + H2O(g) + CO2(g).


◦ +7.85 kJ
◦ -7.85 kJ
◦ +3.67 kJ
◦ -3.67 kJ
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by Themember4 on Feb 15, 2020

kkenney

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Reply #1 on: Feb 15, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Themember4

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Reply 2 on: Feb 15, 2020
YES! Correct, THANKS for helping me on my review

xiaomengxian

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Reply 3 on: Yesterday
Wow, this really help

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