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Example 2: A 1.00 kg sample of Sb;S3 (s) and a 10.0 g sample of H2 (g) are allowed to react in a 25.0 L container at 713 K. At equilibrium, 72.6 g of H2S (g) are present. Calculate the Kp for the following reaction (@ 713 K): Sb2S3 (s) + 3 H2 (g) <→ 2 Sb (s) + 3 H2S (g) Note: There are solids in this reaction... Think about how that affects the Kp expression.

Example 2: A 1.00 kg sample of Sb;S3 (s) and a 10.0 g sample of H2 (g) are allowed to react in a 25.0 L container at 713 K. At equilibrium, 72.6 g of H2S (g) are present. Calculate the Kp for the following reaction (@ 713 K): Sb2S3 (s) + 3 H2 (g) <→ 2 Sb (s) + 3 H2S (g) Note: There are solids in this reaction... Think about how that affects the Kp expression.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Hey,

The issue I am having here is calculating the partial pressure, if I use 

P=(n/V)*R*T then I get the partial pressure of H2 as 23.2 but according to the teacher it should be 11.585 so instead of just calculating the the total moles of H2 in the reaction should n be a molar fraction? 

Example 2: A 1.00 kg sample of Sb;S3 (s) and a 10.0 g sample of H2 (g) are allowed to react in a 25.0 L container at 713 K. At equilibrium, 72.6 g of H2S (g) are present. Calculate the Kp for the following reaction (@ 713 K): Sb2S3 (s) + 3 H2 (g) <→ 2 Sb (s) + 3 H2S (g) Note: There are solids in this reaction... Think about how that affects the Kp expression.
Transcribed Image Text:Example 2: A 1.00 kg sample of Sb;S3 (s) and a 10.0 g sample of H2 (g) are allowed to react in a 25.0 L container at 713 K. At equilibrium, 72.6 g of H2S (g) are present. Calculate the Kp for the following reaction (@ 713 K): Sb2S3 (s) + 3 H2 (g) <→ 2 Sb (s) + 3 H2S (g) Note: There are solids in this reaction... Think about how that affects the Kp expression.
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