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Unformatted text preview: c) Calculate the value of the equilibrium constant for the above reaction at 25°C. d) Would the reverse reaction become spontaneous at higher temperatures? 2) The Haber synthesis of ammonia from nitrogen and hydrogen is as follows: N 2 (g) + 3H 2 (g) –––––> 2NH 3 (g) (a) Using only the following data for ammonia ( Δ H° f = – 46.1 kJ/mol, and Δ G° f = – 16.5 kJ/mol); calculate Δ H° and Δ S° for the reaction at 25°C (b) Account for the sign of Δ S° (c) Is the reaction spontaneous under standard-state conditions at 25°C ? Explain. (d) What are the equilibrium constants K p and K c for the reaction at 350 K? (You may assume that Δ H° and Δ S° are both independent of temperature)....
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This note was uploaded on 05/05/2009 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell.
- Spring '07