Recently Active Physical Chemistry Questions

why higher the binding energy per nucleon higher stability ...

pls explain me co-ordinate bond. ...

*Image* can somebody explain the above curves ....and the concept of azeotropes .......to me .....this image has been copied from wikipedia ... so as you can judge i have read the material up there ....but still i am confused ...

This is my first physical chem doubt in a long while on chapter "Solution."Pls solve it. The vapour pressure of ethanol and methanol are 44.5 and 88.7mmHg respectively.An ideal solution is formed at the same temperature by mi ...

What is diluted milk- a) A suspension b) A colloid or c) A True Solution And why? ...

please suggest a good book on physical chemistry . ...

Column I Column II (A) Molar conductance (Λcm) (p) Λcm/Λom (B) Equivalent conductance (Λceq) (q) decreases with dilution (C) Resistance of electrolytic solution (R) (r) Increases wtih dilution (D) Degree of ionisation of ...

3.6 g of H20 and 9.2 g of ethanol are mixed together. The soln. obeys raoult’s law. Calculate the mole fraction of ethanol and water in vapour phase. P0water =400 mm Hg , P0ethanol=450 mm Hg ...

why greater s- character ,shorter the C-H bond ????????????? ...

WHY MORE THE SOLVATION OF IONS LESS IS THE CONDUCTION ?????????????????????????????????? ...

calculate the mass of oxygen in grams present in 0.1 mole of Na2CO3.10H2O.explain how to solve these types of compounds ...

why there is unimolecular layer formation in chemisorption ??????? ...

plz explain difference between superimposition and superposition of structers ......................... ...

why change in entropy and enthalphy keeps on increasing and decreasing respctively as time passes and gets equal on at equilibrium?????? ...

why adsorption can take place in solids only if there is a unimolecular layer of the gas molecules on the surface ?????????? ...

in case of transition metals there are free valencies at the surface ..what are these ??? ...

What are the elements of symmetry in a crystal lattice? ...

why rotation not possible in case of double bond but in case of triple bond ??????? ...

sigma bond has cylindrical symmetry .....explain..... ...

An electron moving with velocity "v" is found to have certain de broglie wave length.Calculate the wave length to be possessed by the nuetron to have same de broglie wave length. Please show and explain Thanks ...

how can we convert 53.1g/mol in terms of u ??? ...

Q1.Temperature of 1mole of gas at 25°C is increased by 1°C at constant pressure.Calculate the mechanical work,in joule. Q2.What is the value of internal energy for 1 mole of a monoatomic ideal gas. ...

Arrange H-H,H-F and H-Cl in order of bond length. ...

p ml of a mixture of carbonmonoxide carbon dio oxide and nitrogen are mixed with q ml of oxygen.after oxidation r ml of mixture of carbondioxide nitrogen and left over oxygen are obtained.adsorption with alkali metal leaves s ...

pls give the correct rate for the first order reaction. A→3B is it d[A]/dt=d[B]/dt or it is d[A]/dt=1/3d[B]/dt ...

Rate constant at 25°C for the reaction of NH4+ and OH- to form NH4OH is 4x1010 molar-1sec-1. Calculate the rate constant for proton transfer from water to ammonia. Ionisation constant for aq. NH3 is 1.8x10-5 ...

Why reduction potential of reducing agent decreases with rise of temp. & with increase in concenteration of the reducing solution ? ...

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1) every atom or ion that forms an fcc unit cell is surrounded by x octahedral holes and y tetrahedral holes.?where x and y are.............. 2)consider the structure of CsCl(8,8 coorsination).How many Cs+ ions occupy the sec ...