Physical Chemistry Answers

Examine whether occupation of the bonding orbital in the H2+ molecule-ion by one electron has a greater or lesser bonding effect than occupation of the antibonding orbital by one electron. Is your conclusion true at all internuclear separations?

Suppose that a molecular orbital has the (unnormalized) form 0.145A + 0.844B. Find a linear combination of the orbitals A and B that is orthogonal to this combination and determine the normalization constants of both combinations using S = 0.250.

Describe the bonding in methylamine, CH3NH2, using hybrid orbitals.

Account for the ability of phosphorus to form five bonds, as in PF5.

Account for the ability of nitrogen to form four bonds, as in NH4+.

Normalize to 1 the molecular orbital ψ = ψA + λψB in terms of the parameter λ and the overlap integral S. Assume that ψA and ψB are normalized to 1.

Discuss the role of the Born–Oppenheimer approximation in the molecular-orbital calculation of a molecular potential energy curve or surface.

How is order of reaction determined by half-life method? Explain with the help of an example

Explain the pressure and volume correction terms to the ideal gas equation and deduce van der Waals equation.

Calculate the i) average speed ii)root mean square speed and iii) most probable speed of oxygen molecules at 515K.(Given M_m(O_(2))=0.016kg mol^(-1))