Question

Consider the following reaction:
CaCO3(s)→CaO(s)+CO2(g).
Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.)

Part A: 300 K

Part B: 1040 K

Part C: 1445 K

Part D: Predict whether or not the reaction in part A will be spontaneous or nonspontaneous at 300 K

Part E: Predict whether or not the reaction in part B will be spontaneous at 1040 K

Part F: Predict whether or not the reaction in part C will be spontaneous at 1445 K

Answer 1

page: 0 Answer: According to this given information, to find the following problems. Given, the reaction is, Cacos (s) -→ CaOes) + Coupe). * Estimate Age for this owaction :- . Relationship between Gibb's free Energy Enthalpy, and Entropy is, Astro - Днхо — так: At standand condition of 998K, Enthalpy change for the given reackon is calculated by, Droxo - 0 Hpradecks - Horeactands YXO SHOX = (okr.com'u shf, coo) - (Officalos) stereotyp 2 (-393.5 kJ/mol + (-. 625. Ski/mol) – (-120609 kilomei) -1029 kJ/mol + 1206.9 Kilmol

page:02 All my n = 177.9 kg/mol similarly, change for Entropy _ STP es calculated by osowe Asprockicis -- sssreactands As - Losf,con + Aspicao) - (a Sfi cacos) sson - ( 113.6 g/molik + 40:03/molok] 492.93/molok) 953.6 g/molik - 92.93/molik Siv = 160.7 Jl melk ss xn 0.161 kJ/mork pant A. 3ook. Entropy change does't happen with the Assume, Enthalpy and temperature: T. 300K thern

page:03 дGayo - оно- таsso = 137.9 kg/mol – 300K X 0.461 KSmol. : 17.915)mol - 48,3 kg/mol OG ORE 199.6 Kilmol. is free Energy is positive. Hence, the guachon is non-spontaneous. pant B : Ta louok: AU Дэҳо oso 91X0 - dxn = 1:47.913 /mol – LOUOK X 0167 KJ/mol.be = 147.9 Kilmol -- 167.44 kg/mol AGO = 10.06 kJ/mol SKO). . Free Energy is positive. Hence, the actiones non - spontaneous,

pageiou pant c: T=1405k G Atº Nxn TASⓇ fixo 91x = 147.9 ks) mol-. 1425x 01161 RJ/mologie = 147,9 kJ/mol - 132.645 kJ/mo! AG. VXO -54.745 kg/mol. os free Energy is negative. Hence, the reaction is spontaneous. part: 0 :- no, non-spontaneous. pant: Ei no ; non - spontaneous. partifi yes, Spontaneous.