Physical Chemistry Answers

Discuss hittorf method of determination of transport numbers.

Derive the expression relating equilibrium constant with temperature.

Briefly explain the laws of osmotic pressure

When 2.00 g methane are burned in a bomb calorimeter (heat capacity = 2.677 x 103 J/K), the temperature rises from 24.00 oC to 27.08 oC. The amount of heat, q, in kJ absorbed by the calorimeter apparatus is ?

a) -(2.677 x 10^3)(3.08)
b) (2.677 x 10^3)(3.08)
c) (2.677 x 10^3)(24.00 - 27.08)
d) (2.677 x 10^3)(3.08)/1000
e) -(2.677 x 10^3)(3.08)/1000

Q-1 convert 20micro gram of solution per Kg in PPb.
Q-2 convert 8% W/w NaoH solution in molarity.
Q-3 convert 20 gram NaoH in 500 cm3 solution into molarity..
Q-4 convert 0.0005 gm per cm3 solution into PPm and PPb.

5 gm impure calcium hydroxide is dissolved into 800 ml of water me of this solution 20 ml of decinormal HCl is added . The acidic solution formed is neutralized by 50 ml of N/50 ml of NaOH solution. Percentage purity of Ca(OH)2 is
(1) 44% (2)5.92%. (3)14.34%. (4)7.5%

Using the properties: Charge (Q), Lepton number (L), Baryon number (B) show
that whether the following processes are allowed or not?
i) 0 K + p → Ω + K + K
− − +
ii) π + p → p + p + n

What is Schrodinger equation for hydrogen atom?

A solution is prepared by dissolving 32.5 g of a nonvolatile solute in 200g of water.The vapor pressure above the solution is 21.85 torr and the vapou pressure of pure water bis 23.76 Torr at this temperature. What is the molecular weight of the solute

i want to ask that :-

we know that particle with opposite chage attract eachother......

ie + and - will attract eachother...

then why not the metals with + (positive charge) and non-metals with - (negative charge) attract eachother...............