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What is heterogeneous equilibria ? Give its types with examples. |
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Answer» Solution :Equilibrium in a system having more than one phase is called heterogeneous equilibrium. Type-1: Liquid `hArr` Gas e.g. `H_2O_((L)) hArr H_2O_((g))` Type -2: Solid `hArr` Aqueous solution SATURATED solution : `Ca(OH)_(2(s) + (aq)) hArr Ca_((aq))^(2+) + 2OH_((aq))^(-)` `C_12H_12O_(11(s) + (aq)) hArr C_12H_22O_(11(aq))` Type -3: Solid `hArr` Gas `CaCO_(3(s)) hArr CaO_((s)) + CO_(2(g))` `3C_((s)) + 5/2 O_(2(g)) hArr CO_((g)) + 2CO_(2(g))` `NH_4Cl_((s)) hArr NH_(3(g)) + HCl_((g))` `C_((s)) + CO_(2(g)) hArr 2CO_((g))` `Ni_((s)) + 4CO_((g)) hArr Ni(CO)_(4(aq))` |
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