0,- M,0,0) 2 M(s) + r this reaction, AHn = -5.268 kJ/mol and A.S = 10.78 J/(mol-K) at 298 K. hat is the standard change in Gibbs free energy for the reaction in the forward direction? Gan = kJ hat is the equilibrium constant of this reaction at 298 K? That is the equilibrium pressure of O, (g) over M(s) at 298 K? Po, %3D

0,- M,0,0) 2 M(s) + r this reaction, AHn = -5.268 kJ/mol and A.S = 10.78 J/(mol-K) at 298 K. hat is the standard change in Gibbs free energy for the reaction in the forward direction? Gan = kJ hat is the equilibrium constant of this reaction at 298 K? That is the equilibrium pressure of O, (g) over M(s) at 298 K? Po, %3D

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...

See similar textbooks

Similar questions

For the reaction 2NO(g) + O2(g)- →2NO2(g) AH° = -114.2 kJ and AS° = -146.5 J/K The equilibrium constant for this reaction at 350.0 K is Assume that AH° and AS° are independent of temperature.
Consider the following reaction, where AG =-625 J at 300 C, 2 XOG) + Oz(g) 2 X02(g) a) Determine K, at 300 °C. b) Calculate AG° at 300 °C when P(XO) = 8.0x10-4 atm, P(O2) = 0.072 atm, and P(XO2) = 9.0 atm. %3D c)Is the reaction spontaneous when carried out under the conditions in (b)? How do you know? (no points for guessing) d) At 0.00 °C, AG" = 17000 J/mol. Calculate AH and AS.
8. Gaseous nitrosyl bromide, NOBr, is formed by the reaction 2NO(g) + Br,(g) 2 2NOBr(g) At 25°C, the equilibrium constant for this reaction is K, = 116 atm-1. The reaction as written is exothermic, or heat emitting. When the following amounts of the three gases are introduced into a 1-liter flask, is the reaction spontaneous in the forward or reverse direction, or is it at equilibrium? a) 0.045 atm NOBr, 0.01 atm NO, and 0.10 atm Br, at 25°C b) 0.045 atm NOBr, 0.10 atm NO, and 0.01 atm Br, at 25°C c) 0.108 atm NOBr, 0.10 atm NO, and 0.01 atm Br, at 0°C
For the reaction N2(g) + 3H2(g)–→2NH3(g) AH° = -92.2 kJ and AS° = -198.7 J/K %3D The equilibrium constant for this reaction at 294.0 K is Assume that AH° and AS° are independent of temperature.
c
-) Phosphorous and chlorine gases combine to produce phosphorous trichloride: P2(g) + 3C12(g) → 2PC13(g) AG° at 298 K for this reaction is -642.9 kJ/mol. At 298 K for a reaction mixture that consists of 2.0 atm P2, 2.0 atm Cl and 1.0 atm PC13 what is the value of AG?
A] HgS occurs in two crystalline forms called "red" and "black". For the conversion of 8. L- the red form to the black form at 525 °C, 4Gº = -0.157 kJ mol-¹ and AH = 4.184 kJ mol-¹. Assuming the AH is temperature independent, find the temperature at which the two forms can coexist at equilibrium at 1.000 bar. Which is more stable above this temperature?
16
At -5.92 °C the pressure equilibrium constant K = 5.9 for a certain reaction. P Here are some facts about the reaction: • If the reaction is run at constant pressure, 127. kJ/mol of heat are released. • The constant pressure molar heat capacity C • The net change in moles of gases is -1. = 2.41 J mol -1. K¹. -1 р Yes. ☐ x10 Using these facts, can you calculate K at -27. °C? ○ No. If you said yes, then enter your answer at right. Round it to 2 significant digits. Р If you said no, can you at least decide whether K at -27. °C will be bigger or smaller than K, at −5.92 °C? П Yes, and K, will be р bigger. Yes, and K smaller. will be No. ☑
6
38. For this process at 25 °C: H2O(g) H2O (A) AH is negative as energy is released. (B) AH is negative as energy is absorbed. (C) AH is positive as energy is released. (D) AH is positive as energy is absorbed.
For the reaction N2(g) + 3H2(g) 2NH3(g) AH° = -92.2 kJ and AS° = -198.7 J/K %3D The equilibrium constant for this reaction at 326.0 K is Assume that AH° and AS° are independent of temperature.