find the degrees of freedom of a salt solution
Answers
Explanation:
Invariant points for salt solutions are points where several salts are in equilibrium with the same solution. At the same time, the solution is in equilibrium with a vapor phase, and perhaps also a second liquid phase.
According to Gibbs phase rule, a system with C chemically independent components and P phases in equilibrium has F=C-P+2 degrees of freedom. For a system consisting of one pure species the phase rule is F=3-P. If two phases are in equilibrium with each other in a one-component system, the system has one degree of freedom. The system is univariant.
Pure water boils at 100°C if the pressure is one atmosphere. If the pressure is lower than one atmosphere, pure water will boil at a temperature below 100°C. If the pressure is higher than one atmosphere, pure water will boil at a temperature higher than 100°C.
A system consisting of water vapor in equilibrium with liquid water has only one degree of freedom. The pressure OR the temperature can be fixed. Fixing one will automatically determine the other. At the triple point of H2O, ice, water, and steam are in equilibrium. According to the phase rule, a one component system has no degrees of freedom when three phases are in equilibrium (F=0).The system is invariant. The triple point of water is at 273.16 K and 612 Pa