Consider a container of volume 5.0 dm3 that is divided into two compartments of equal size. In the left compartment there is nitrogen at 1.0 atm and 25 °C; in the right compartment there is hydrogen at the same temperature and pressure. Calculate the entropy and Gibbs energy of mixing when the partition is removed. Assume that the gases are perfect.

Consider a system consisting of three quanta of energy distributed between four molecules. Each molecule may possess three, two, one or no quanta. (a) Show, by drawing the various possible arrangements, that there are 20 different ways of distributing the quanta between the molecules. (b) Use theBoltzmann formula to calculate the entropy of the system.

The discipline dealing with material distribution between coexisting phases is called Select one: O a. Fluid dynamics O b. Physical chemistry O c. Civil engineering O d. Phase-equilibrium thermodynamics

In a 2-component, 2-phase system, write Raoult's law for component 1 and component 2, and derive the equation that relates Bubble temperature to Bubble point, and the equation that relates Dew temperature to Dew point.