?At \(900^{\circ} \mathrm{C}, K_{c}=0.0108\) for the reaction\(\mathrm{CaCO}_{3}(s)

Chapter 15, Problem 15.84

(choose chapter or problem)

At \(900^{\circ} \mathrm{C}, K_{c}=0.0108\) for the reaction

\(\mathrm{CaCO}_{3}(s) \rightleftharpoons \mathrm{CaO}(s)+\mathrm{CO}_{2}(g)\)

A mixture of \(\mathrm{CaCO}_{3}, \mathrm{CaO}\), and \(\mathrm{CO}_{2}\) is placed in a 10.0-L vessel at \(900^{\circ} \mathrm{C}\). For the following mixtures, will the amount of \(\mathrm{CaCO}_{3}\) increase, decrease, or remain the same as the system approaches equilibrium?

(a) \(15.0 \mathrm{~g} \mathrm{CaCO}_{3}, 15.0 \mathrm{~g} \mathrm{CaO}\), and \(4.25 \mathrm{~g} \mathrm{CO}_{2}\)

(b) \(2.50 \mathrm{~g} \mathrm{CaCO}_{3}, 25.0 \mathrm{~g} \mathrm{CaO}\), and \(5.66 \mathrm{~g} \mathrm{CO}_{2}\)

(a) \(30.5 \mathrm{~g} \mathrm{CaCO}_{3}, 25.5 \mathrm{~g} \mathrm{CaO}\), and \(6.48 \mathrm{~g} \mathrm{CO}_{2}\)

Text Transcription:

900^circ C, K_c=0.0108

CaCO_3(s) \rightleftharpoons CaO(s)+CO_2(g)

CaCO_3, CaO

CO_2

CaCO_3

15.0 g CaCO_3, 15.0 g CaO

4.25 g CO_2

2.50 g CaCO_3, 25.0 g CaO

5.66 g CO2

30.5 g CaCO3, 25.5 g CaO

6.48 g CO2