Medium
Write the general characteristics of equilibria involving physical processes.
(N/A) For physical processes,the following characteristics are common to the system at equilibrium:
$(i)$ Equilibrium is possible only in a closed system at a given temperature.
$(ii)$ Both the opposing processes occur at the same rate,resulting in a dynamic but stable condition.
$(iii)$ All measurable properties of the system remain constant over time.
$(iv)$ When equilibrium is attained for a physical process,it is characterized by a constant value of one of its parameters (e.g.,pressure,concentration) at a given temperature.
$(v)$ The magnitude of such quantities at any stage indicates the extent to which the physical process has proceeded before reaching equilibrium.
$(i)$ Equilibrium is possible only in a closed system at a given temperature.
$(ii)$ Both the opposing processes occur at the same rate,resulting in a dynamic but stable condition.
$(iii)$ All measurable properties of the system remain constant over time.
$(iv)$ When equilibrium is attained for a physical process,it is characterized by a constant value of one of its parameters (e.g.,pressure,concentration) at a given temperature.
$(v)$ The magnitude of such quantities at any stage indicates the extent to which the physical process has proceeded before reaching equilibrium.
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$(c)$ $CaCO_{3(s)} \rightleftharpoons CaO_{(s)} + CO_{2(g)}$
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$(e)$ $NH_{3(g)} + H_{2}O_{(l)} \rightleftharpoons N{H_{4}}^{+}_{(aq)} + OH^{-}_{(aq)}$
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$(b)$ $Ca(OH)_{2(s)} \rightleftharpoons Ca^{2+}_{(aq)} + 2OH^{-}_{(aq)}$
$(c)$ $CaCO_{3(s)} \rightleftharpoons CaO_{(s)} + CO_{2(g)}$
$(d)$ $Ag_{2}O_{(s)} + 2H^{+}_{(aq)} \rightleftharpoons H_{2}O_{(l)} + 2Ag^{+}_{(aq)}$
$(e)$ $NH_{3(g)} + H_{2}O_{(l)} \rightleftharpoons N{H_{4}}^{+}_{(aq)} + OH^{-}_{(aq)}$
$(f)$ $CH_{3}COOC_{2}H_{5(l)} + H_{2}O_{(l)} \rightleftharpoons CH_{3}COOH_{(l)} + C_{2}H_{5}OH_{(l)}$
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MediumAIPMT 1992
View SolutionGiven the reactions at $500 \ K$:
$(i) \ H_{2(g)} + 1/2 O_{2(g)} \rightleftharpoons H_2O_{(g)}$,$K_c = 2.4 \times 10^{47}$
$(ii) \ H_2O_{(g)} \rightleftharpoons H_{2(g)} + 1/2 O_{2(g)}$,$K_c = 4.1 \times 10^{-48}$
What does the magnitude of $K_c$ indicate about the formation of the product in reaction $(i)$?
$(i) \ H_{2(g)} + 1/2 O_{2(g)} \rightleftharpoons H_2O_{(g)}$,$K_c = 2.4 \times 10^{47}$
$(ii) \ H_2O_{(g)} \rightleftharpoons H_{2(g)} + 1/2 O_{2(g)}$,$K_c = 4.1 \times 10^{-48}$
What does the magnitude of $K_c$ indicate about the formation of the product in reaction $(i)$?
Medium
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