CO(g) + H2O(g) CO2(g) + H2(g) The standard formation free energies of the substances in the equilibrium reaction at cons- tant pressure are given below in kcal mol1. AG co (298) = -32,81 ; AG;H0(298) =-54,64 ; AGico, (298) = -94,26 a) What is the equilibrium constant of the reaction at 298 K? b) In which direction does the reaction proceed at 298K in a mixture where the partial pressures of the substances at equilibrium are Pco = 0.1atm, Pco. = 0,03atm PH0 = 0,02atm , P = 0,2atm ? c) Since the standard reaction entropy is -10.13 cal / K, what is the equilibrium constant at 125°C? dlnk = (AH° / RT² ) dT

CO(g) + H2O(g) CO2(g) + H2(g) The standard formation free energies of the substances in the equilibrium reaction at cons- tant pressure are given below in kcal mol1. AG co (298) = -32,81 ; AG;H0(298) =-54,64 ; AGico, (298) = -94,26 a) What is the equilibrium constant of the reaction at 298 K? b) In which direction does the reaction proceed at 298K in a mixture where the partial pressures of the substances at equilibrium are Pco = 0.1atm, Pco. = 0,03atm PH0 = 0,02atm , P = 0,2atm ? c) Since the standard reaction entropy is -10.13 cal / K, what is the equilibrium constant at 125°C? dlnk = (AH° / RT² ) dT

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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Consider the following reaction at equilibrium. What effect will doubling the temperature have on the system? CH4 ( + 2 02 () = CO2 (g) + 2 H2O () AH° = -882.0 kJ O No shift will occur because the volume of the system has not changed. No shift will occur because the total number of gas molecules on both sides of the chemical equation are equal. O A shift left towards reactants will occur. O No shift will occur because none of the concentrations have changed. O A shift right towards products will occur.
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[Review Topics] [References] Use the References to access important values if needed for this question. Consider the following system at equilibrium where AH=-108 kJ, and K. 77.5, at 600 K. CO(g) + C,(g) COCI,(g) When 0.22 moles of Cl,(g) are added to the equilibrium system at constant temperature: The value of K The value of Qe K. The reaction must O run in the forward direction to restablish cquilibrium. O run in the reverse direction to restablish cquilibrium. O remain the same. It is already at cquilibrium. The concentration of CO will Submit Answer Retry Entire Group 1 more group attempt remaining
The conversion of glucose-6-phosphate to fructose-6-phosphate has a K'eg of 0.5. Based on that information, which of the following sets of changes in the terms of the Gibbs equation is correct? O AH°' negative AS" positive AG negative O AH positive AS' negative AG" positive O AH" positive AS" positive AG" negative O AH' negative AS' positive AG" positive
[References] Use the References to access important values if needed for this question. Consider the following system at equilibrium where AH° = 16.1 kJ, and Kc = 6.50 x 10-3, at 298 K: 2NOBr(g) 2NO(g) + Br₂(g) If the VOLUME on the equilibrium system is suddenly increased at constant temperature: The value of Ke Oincreases O decreases O remains the same The value of Qc O is greater than Ke O is equal to Ke O is less than K The reaction must run in the forward direction to reestablish equilibrium. Orun in the reverse direction to reestablish equilibrium. Oremain the same. It is already at equilibrium. The number of moles of Br2 will O increase O decrease O remain the same Show Hint F5 6 H F6 & 7 KI F7 * 8 DII F8 ( 9 DD F9 ) O F10 P F11 Previous + Next Save and Exit F12 delete
Consider the following equilibrium: 2NO(g) + Cl₂ (g) 2NOCI (g) AG=-41. kJ Now suppose a reaction vessel is filled with 1.55 atm of chlorine (C1₂). about this system: T Under these conditions, will the pressure of NOCI tend to rise or fall? Is it possible to reverse this tendency by adding NO? In other words, if you said the pressure of NOC1 will tend to rise, can that be changed to a tendency to fall by adding NO? Similarly, if said the pressure of NOCI will tend to fall, can that be changed to a tendency to rise by adding NO? If you said the tendency can be reversed in the second question, calculate the minimum pressure of NO needed to reverse it. Round your answer to 2 significant digits. and 4.77 atm of nitrosyl chloride (NOCI) at 683. °C. Answer the following questions Orise Ofall yes Ono atm O x10 X S
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