Physical Chemistry Answers

For the first two lines of Paschen series, identify the value of n1 and n2.
Calculate the wave number values for these lines.

Calculate the energy values of the electron in the second orbit of hydrogen
atom. What will be the radius of this orbit?

question: Analyze how conditions which are likely to be present in a given industrial situation
(e.g. oil-platform, industrial boilers) differ from ideal conditions and are likely to affect predictions of corrosion tendency based on standard reduction potentials.

(the aim is: Analyse the extent to which standard reduction potentials may predict the extent of corrosion in an industrial context.)
Can you explain this question? and give an example of what I should write it is distinction task so it is meant to be hard.

In the Haber process, nitrogen and hydrogen react in the presence of an iron catalyst to form ammonia according to the equation
N2(g) + 3H2(g) ⇄ 2NH3(g) H = -92 kJ mol-1
Refer to the ammonia production reaction above:
a. Explain how an increase and a decrease in the concentration of the reactants will affect the speed of the reaction.
b. Explain how an increase and a decrease in the concentration of the reactants will affect the yield of ammonia as the equilibrium constant is maintained.
c. Explain how an increase and a decrease in temperature will affect the yield of ammonia
d. Explain how an increase and a decrease in pressure will affect the yield of ammonia.
e. Explain the effect of catalyst on the position of equilibrium and hence the yield of ammonia

Derive an expression for the rate of photochemical decomposition of HI.

What are buffer solutions? Calculate the pH of 1.0 M of acetic acid having Ka = 1.8 x 10^(-5)

For the reaction, CO(g) + 2H2 (g)= CH3 OH (g) derive an expression for the equilibrium constant, Kp in terms of the extent of reaction, € and the total pressure pt, if initially 2 mol of CO and 3 mol of H2 are mixed.

Calculate the entropy of mixing when 2.00 mol of H2 are mixed with 3.00 mol of N2 assuming that no chemical reaction occurs between them.

if the molecular surface of two myoglobin molecule are uprated by a distance of 20 Angstroms diameter of each myoglobin is 40 angstroms diploe moment of myoglobin is 170 D at 20 angstrom and are collinear present then calculate the energy of interaction between two molecules?

The silver nitrate solution from the central compatiment of a transference cell weighed 36.6 grams and was titrated with 32.7ml of NH4CNS solution, 1 ml of which was equivalent to 0.0085g of AgNO3. the solution from the cathode compatment weighed 43.17g required 24.4ml of NH4CNS solution.im the coloumeter in series, the amount of copper deposited was 0.029g. calculate the transport number of Ag+ and NO3+