1 / 3

The following reaction is used industrially to produce a combustible gas from coal:

The following reaction is used industrially to produce a combustible gas from coal: H 2 O(g) + C(s) H 2 (g) + CO(g) A mixture of powdered coal and steam at a pressure of 1 atm and a temperature of 1300 o C was allowed to reach equilibrium. It was found that

lovey
Download Presentation

The following reaction is used industrially to produce a combustible gas from coal:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. The following reaction is used industrially to produce a combustible • gas from coal: • H2O(g) + C(s) H2(g) + CO(g) • A mixture of powdered coal and steam at a pressure of 1 atm and a • temperature of 1300 oC was allowed to reach equilibrium. It was found that • he total pressure had increased to 1.9 atm but the remaining steam had a partial • pressure of only 0.1 atm. • Write down the expression Kp including its units. • Use the data given to calculate the partial pressures of hydrogen and carbon monoxide and hence calculate a value for Kp

  2. Kp = PH2 x PCO PH20 • H2O(g) + C(s) H2(g) + CO(g) • 0 0 • 0.1 0.9 0.9 Initial partial pressure/atm: Equilibrium: Change in partial pressure of steam = 1 – 0.1 = 0.9 atm. The steam has reacted to form hydrogen and carbon monoxide Since 1 mol of steam produces 1 mol of H2 and 1 mol of CO, partial pressure of H2 = partial pressure of CO = partial pressure of steam used = 0.9 atm. Kp = PH2 x PCO = 0.9 x 0.9 = 8.1 0.1 PH20

  3. Alternative method: Since the total pressure at equilibrium is 1.9 and the remaining partial pressure of steam is 0.1, the partial pressures of H2 and CO is 1.9 – 0.1 = 1.8. Since the same amounts of H2 and CO are produced in the reaction, partial pressure of H2 = partial pressure of CO = 0.5 x 1.8 = 0.9 atm.

More Related