in a 500 ml capacity vessel CO and Cl2 are mixed to form COCL2.at euilibrium,it contains 0.2 moles of COCl2 and 0.1 mole of each of CO and CO2 the euilibrium constant Kc for the reaction CO+Cl2----- COCL2 is
in a 500 ml capacity vessel CO and Cl2 are mixed to form COCL2.at euilibrium,it contains 0.2 moles of COCl2 and 0.1 mole of each of CO and CO2 the euilibrium constant Kc for the reaction CO+Cl2----- COCL2 is
31. A 1 M solution of glucose reaches dissociation equilibrium according to equation given below . What is the concentration of HCHO at equilibrium if equilibrium constant is 6 x 1022
(a) 1.6 x 10-8 M (b) 3.2 x 10-6 M
(c) 3.2 x 10-4 M (d) 1.6 x 10-4 M
For a reaction, , 1.5 moles of and 1 mole of are taken in a 2 L vessel. At equilibrium the concentration of was found to be 0.35 mol . The for the reaction would be
answer- 10 raised 10
Q.168. Calculate the pH of a buffer solution prepared by dissolving 30 g of in 500 mL of an aqueous solution containing 150 mL of 1 M HCl. Ka for
(1) 8.197
(2) 9.197
(3) 10.197
(4) 11.197
1. More in 5 litre vessel 2. More in 10 litre vessel 3. Equal in both vessel 4. None of these
Q. Fixed volume of 0.1 M benzoic acid (pKa = 4.2) solution is added into 0.2 M sodium benzoate solution and formed a 300 mL. resulting acidic buffer solution. If pH of the resulting solution is 3.9, then added volume of benzoic acid is
(a) 240 mL (b) 150 mL
(c) 100 mL (d) None
1. One mole of N2O4 (g) in a 1 L flask decornposes to attain the equilibrium N2O4 (g) 2NO2(g)
At the equilibrium the mole fraction of NO2 is 1/2 Hence Kc will be:
(1) 1/3 (2) 1/2 (3) 2/3 (4) 1
(a) 12 kJ/mole (b) 831.4 kJ/mole (c) 100 kJ/mole (d) 88.57 kJ/mole
Q. Two sample of HI each of 5 gm. were taken seperately into vessels of volume 5 and 10 litres respectively at 27C. The extent of dissociation of HI will be :-
(1) More in 5 litre vessel
(2) More in 10 litre vessel
(3) Equal in both vessel
(4) None of these
(1) 1 (2) 0.25 (3) 0.75 (4) None of these