What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively ?

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Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because_________________?

A. The strong base and strong acid reacts completely B. The salt formed does not hydrolyse C. Only OH- and H+ ions react in every case D. The strong base and strong acid reacts in aqueous solution...

Pick out the wrong statement?

A. The evaporation of aqueous solution of glucose causes its molarity to increase B. Both the freezing point as well as boiling point of sea water is more than that of distilled water C. The solution containing equal masses of two liquids ‘X’ and ‘Y’ has the same mole fraction of’ ‘X’ and ‘Y’ D. … Pick out the wrong statement?Read More...

If pH value of a solution is 8, then its pOH value will be ____________________?

A. 6 B. 1 C. 7 D. 10...

1 Kcal/kg. °C is equivalent to _______________ BTU/lb. °F ?

A. 1 B. 2.42 C. 4.97 D. None of these...

Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is_________________?

A. PvB B. xB.PvB C. (Patm – Pvw)xB D. xB.Patm...