Which one of the following has `Delta S^(o)` greater than zero? (A) `CaO_(s)`+`CO_(2)(g)``rightleftharpoons `CaCO_(3)(s) (B) NaCl(aq)rightleftharpoons NaCl(s) (C) NaNO_(3)(s)rightleftharpoons Na^(+)(aq)+NO_(3)(aq) (D) N_(2)(g)+3H_(2)(g)rightleftharpoons2NH_(3)(8)

Which of the following halides react(s) with AgNO_(3)(aq) to give a precipitate that dissolves in Na_(2)S_(2)O_(3)(aq)

Find the units of K_P and K_C for the following reactions. CaCO_3 (s) hArr CaO(s) +CO_2(g)

In which of the following reactions heterogeneous catalysis is involved? (i) 2SO_(2)(g)+O_(2)(g) overset(NO(g))(to) 2SO_(3)(g) (ii) 2SO_(2)(g) overset(Pt(s))(to) 2SO_(3)(g) (iii) N_(2)(g)+3H_(2)(g) overset(Fe(s))(to) 2NH_(3)(g) (iv) CH_(3)COOCH_(3)(l)+H_(2)O(l) overset(HCl(l))(to)CH_(3)COOH(aq)+CH_(3)OH(aq)

In line kilns, the following reaction, CaCO_(3)(s) hArr CaO(s)+CO_(2)(g) proceeds to completion because of

Predict the outcome of the following reactions and write balanced equations. (i) BaO_(2)(s)+H_(2)SO_(4(aq))to (ii) Ba(NO_(3))_(2(aq))+Na_(2)SO_(4(aq))to (iii) Ca(s)+H_(2)(g)+"Heat"to

Determine which of the following reactions at constant pressure represent systems that do work on the surrounding environment I. Ag^(+) (aq) + Cl^(-) (aq) rarr AgCl(s) II. NH_(4)Cl(s) rarr NH_(3) (g) + HCl (g) III. 2NH_(3)(g) rarr N_(2)(g) + 3H_(2)(g)

Percentage loss in mass, when NaHCO_(3)(s) is heated in open vessel 2NaHCO_(3)(s)rarrNa_(2)CO_(3)(s)+CO_(2)(g)+H_(2)O(g)

Which of the following reactions is endothermic ? CaCO_3(s) to CaO(s) + CO_2(s) Fe(s) + S(s) toFeS(s) NaOH (aq) + HCl (aq) to NaCl (aq) + H_2O(l) CH_4(g) + 2O_2(g) to CO_29g) + 2H_2O(l) .

Write an expression for K_(p) and K_(c) for the following heterogeneous and homogenous equilibrium. (i) CaCO_(3)(s) hArr CaO(s) +CO(g) (ii) H_(2)O(l)+CO_(2)(g) hArr H_(2)CO_(3)(aq) (iii) 2NH_(3)(g) hArr N_(2)(g) +3H_(2)(g) (iv) 2HgO(s) hArr 2Hg (l) +O_(2)(g)