Activity 3. Gibbs Free Energy (LAS 5.a) Learning Objective: Solve problems involving the standard Gibbs free energy. Substance AG° (kJ/mol) What you need: Pen, Paper, Periodic Table of Elements and Calculator. CH4 -50.8 What to do: Calculate the standard free-energy changes for the following eactions at 25°C and interpret the values obtained from the calculations. Write your answers in a separate sheet of paper. 02 CO2 -394.4 1. CHa(g) + 202(g) → CO2(g) + 2H2O(1) H20 -237.2 2. 2M9O(s) → 2Mg(s) + O2(g) Mgo -569.6 Mg

Activity 3. Gibbs Free Energy (LAS 5.a) Learning Objective: Solve problems involving the standard Gibbs free energy. Substance AG° (kJ/mol) What you need: Pen, Paper, Periodic Table of Elements and Calculator. CH4 -50.8 What to do: Calculate the standard free-energy changes for the following eactions at 25°C and interpret the values obtained from the calculations. Write your answers in a separate sheet of paper. 02 CO2 -394.4 1. CHa(g) + 202(g) → CO2(g) + 2H2O(1) H20 -237.2 2. 2M9O(s) → 2Mg(s) + O2(g) Mgo -569.6 Mg

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

Consider the reaction described by the chemical equation shown. C,H,(g) + H,O(1) – C,H,OH(1) AH xn = -44.2 kJ Use the data from the table of thermodynamic properties to calculate the value of ASxn at 25.0 °C. ASixn J.K-! Calculate AGixn ·
6
Predict the sign of ASº, +, -, or 0, for each of the following reactions and drag it into the boxes: • Lead nitrate (Pb(NO3)2) and potassium iodide (KI) solutions form a precipitate of lead iodide (Pbl2) when mixed • Ice melts at 0°C 0 • Magnesium metal reacts with oxygen gas to form solid magnesium oxide ● Hydrogen gas (H₂) and chlorine gas (Cl₂) react to form hydrochloric gas (HCI) gas + O
Q3
Be sure to answer all parts. For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCl₂), perform the following calculations. (a) Calculate the AS at 298 K (AH° = −220. kJ/mol and AG° = −206 kJ/mol). kJ/mol K (b) Assuming that AS and AH change little with temperature, calculate AG at 450. K. kJ/mol
1.) Complete A and B to move on. a.) Write the complete, balanced chemical equation for the following reaction on a separate sheet of paper. Provide products where they are not given. Assume that the reaction is spontaneous. Propane (C3H8) + oxygen → carbon dioxide + water Type the sum of the coefficients in the equation into the answer blank. If there is no coefficient, count it as one. Include ( g, s, l, or aq) b.) Write the complete, balanced chemical equation for the following reaction on a separate sheet of paper. Provide products where they are not given. Assume that the reaction is spontaneous. Diphosphorus pentoxide + water → Type in the coefficient and formula for the product in the equation that contains phosphorus. Include ( g, s, l, or aq)
Identify the reactions that are exothermic. ) Multiple answers: Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation... SHOW MORE V C(graphite)C(diamond) AH° = 2 kJ b. CaCO3 (s) CaO(s) + CO2(g) AH° = 178 kJ CuO(s) + H2 (g) → Cu(s) + H2 0(g) AH° = -85 kJ 2H2 (g) + 02(g) - 2H20(g) AH = -484 kJ 3H2 (g) + N2(g) 2NH3 (g) AH - 92 kJ Unanswered
3.
Using H° data, calculate the standard enthalpy change for the reaction at 298K. 2 NH3(g) HNO3(aq) --> NO2(g) 2 H20(1) AH° (KJ/mol) -46.19 -206.6 33.84 -285.83 (Note: the table AH values are located directly below the corresponding compound, this is the number found in the Appendix)
4
Hello, I'm getting the problem attached incorrect. Can you help me?