1. Dimensionless Number - Schmidt. Determine the Schmidt number for methanol in air at 298 K and 1 atm and in w liquid water at 298 K.

What is the saturation temperature of H20 at P= 73 kPa, in °C?

3- For a strong electrolyte when C= 0.04 M then Am= 250 S. cm² mol1 and when C = 0.09 M then Am= 200 S. cm² mol1, then for that electrolyte What is the value of Am and A°m are respectively?

Sea water at 20ºC and 1 bar. If the salt mole fraction in the water is 0.01, what is the entropy of H2O in the sea water? Note: the question can be analyzed by the ideal solution, and it is as follows: Si=niSmi0-niRlnx

Caculate the activity of liquid water at 25 oC and 100 barr pressure. The molar volume of H2O at this temperature is 18.07 cm3.

Describe the significance of the Gibbs theorem for ideal gases.

6. By indicating the partial positive and partial negative atoms, show the bond polarity for each of the following molecules: 
(a) O–F (b) Br–Br (c) C–Br (d) C–O

A 0.561 m solution of an unknown electrolyte depresses the freezing point of water by 2.93 °C. What is van’t Hoff factor for this electrolyte? The freezing point depression constant (Kf) for water is 1-86 °C kg mol-1

A radiation of wave number 19865 cm is incident on a sample of "N₂. If the equilibrium bond length is 110 pm, find the wave-number of the scattered Stokes radiation for the transition J = 0→2.