Talc, Mg3Si4O10(OH)2, reacts with forsterite (Mg,SiO4) to form enstatite (MgSiO3) and water vapor. (a) Write a balanced chemical equation for this reaction. (b) If the water pressure is equal to the total pressure, will formation of products be favored or disfavored with increasing total pressure? (c) The entropy change for this reaction is positive. Will the slope of the coexistence curve (pressure plotted against temperature) be positive or negative?

Talc, Mg3Si4O10(OH)2, reacts with forsterite (Mg,SiO4) to form enstatite (MgSiO3) and water vapor. (a) Write a balanced chemical equation for this reaction. (b) If the water pressure is equal to the total pressure, will formation of products be favored or disfavored with increasing total pressure? (c) The entropy change for this reaction is positive. Will the slope of the coexistence curve (pressure plotted against temperature) be positive or negative?

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

b) Calculate ΔGo and K for the reaction; NO + O3 → NO2 + O2 Is the size of the equilibrium constant principally a consequence of the ΔHo or of the ΔSo for this reaction? Note: You can find all values of ΔGof, ΔSo and ΔHof regarding molecules in the Tables using the internet.
23. When a liquid changes to a gas, the entropy of the system (a) increases. (b) decreases. (c) remains the same. (d) the change in entropy cannot be predicted.
Acetylene gas, C2H21g2, is used in welding. What is the maximum amount of useful work that can be accomplished under standard conditions by this reaction?
Which of the following is the standard free energy of formation (AG:) for the substance? S(g) + O2(g) → SO2(g) C(s, graphite) + 2H2(g) → CHA(g) NH3(g) → ½N2(g) +1.5H2(g) 2C(s, diamond) + 2H2(g) + O2(g) →CH3COOH (I)
1. Which of the following processes are spontaneous: spreading of a bad odour through a room; separating a mixture of O2 and N2 into two separate samples, one that is pure H2 and one that is pure N2; the reaction of sodium metal with oxygen gas to form a metal oxide; (a) (b)
For a particular reaction, ΔH = -32 kJ and ΔS = -98 J/K.Assume that ΔH and ΔS do not vary with temperature.(a) At what temperature will the reaction have ΔG = 0?(b) If T is increased from that in part (a), will the reactionbe spontaneous or nonspontaneous?
What will be the enthalpy of reaction in KJ if the entropy (ΔS) is 519 J/K at 73oC?
Determine Δngasfor each of the following reactions:
Using ONLY the information given in the problem (no thermodynamic table), calculate the standard free energy change for this reaction. At 298K, K = 6.74 x 106 for the following reaction: %3D C;H,O3 (g) C,H6(g) + 3CO(g)
(a) Define what is spontaneous reaction. (b) How it is related to chemistry
Estimate ΔHrxn for the following reaction: C2H4+H2→C2H6 Give your answer in kJ per mole.