Answered: C) CaCO3(s) → CaO(s)+CO2(g)…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 62QRT

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Please help with C and I:

C) CaCO3(s) → CaO(s)+CO2(g)

Calculate the value of the equilibrium constant.

Express the equilibrium constant to three significant figures.

K=_____

I) 2NO(g)+O2(g) ⇌ 2NO2(g)

Calculate the value of the equilibrium constant.

Express the equilibrium constant to three significant figures.

K=___

Using data from the table below, write the equilibrium-constant expression and calculate the value of the equilibrium constant and the free-energy change for these reactions at 298 KK.

Substance	ΔG∘fΔGf∘ (kJ/mol)(kJ/mol)
NaHCO3(s)NaHCO3(s)	−−851.8
NaOH(s)NaOH(s)	−−379.5
CaCO3(s)CaCO3(s)	−−1128.76
CaO(s)CaO(s)	−−604.0
K2CO3(s)K2CO3(s)	−−1064.58
K2O(s)K2O(s)	−−322.1
CO2(g)CO2(g)	−−394.4
HBr(g)HBr(g)	−−53.34
HCl(g)HCl(g)	−−95.27
Br2(g)Br2(g)	3.14
SO2(g)SO2(g)	−−300.4
SO3(g)SO3(g)	−−370.4
CO(g)CO(g)	−−137.2
CH3OH(g)CH3OH(g)	−−161.9
NO(g)NO(g)	86.71
NO2(g)NO2(g)	51.84

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