Physical Chemistry Answers

The value of Kc=4.24 at 800 K for the reaction
CO(g)+ H2O(g) = CO2(g)+H2(g)
Calculate the equilibrium concentration of,CO2,H2,CO,H2O at 800K, if only CO and H2O are present initially at concentration of .10M each?

The pH of Ca(OH)2 solution is 12.Find the number of milliomoles of Ca(OH)2 present in its 100ml solution.

Give a brief discussion about all type of reactions with examples.

A flow of 150 GPM is to be treated with 2.4 percent (.02 pounds per gallon) solution of sodium Fluoride (NaF). The water to be treated contains 0.5 mg/L of fluoride ion and the desired fluoride ion concentration is 1.4 mg/L. What is the sodium feed rate in gallons per day? Assume the sodium fluoride purity of 43.4 percent.

Water is a non linear molecule. The number of modes of vibration of this molecule can predict the number of bands of IR spectrum. Justify or Explain.

The molar extinction coefficient of a compound, X, at 370 nm wavelength is 250 m^2 mol^-1. It's solutions of concentration 7.5 * 10^-2 mol m^-3 is taken in a cell of thickness 0.010 m. Find the ratio of the intensity of transmitted radiation to the intensity of the incident radiation.

Calculate the de Broglie wavelength of Li+ ion, if it moves with the velocity of 2  104 m s1. Assume that the mass of Li+ ion is equal to two mass of Li atom

For 12 c 16 o, the fundamental frequency is 2143 cm^-1. Calculate the fundamental frequency of 14 c 16 o.

You are given a gaseous substance.suggest an experimental method to find out whether it is polar or nonpolar. Discuss the steps to be used in this method.

For 214Bi, the half -life period is 19.7 minutes. Calculate the radioactive decay constant. Also calculate how much of 1 gram sample of 214 Bi will remain after 78.4 minutes.