(a) What is an 'Ideal solution'? Discuss the characteristics of an ideal
solution.
(b) State the laws relating to Ideal solutions.
(c) Write a note on Henry's law.
(2013, 16)
Answers
Answer:
In chemistry, an ideal solution or ideal mixture is a solution in which the gas phase exhibits thermodynamic properties analogous to those of a mixture of ideal gases.
Answer:
a If we take the simplest definition of an ideal solution, then it is described as a homogeneous solution where the interaction between molecules of components (solute and solvents) is exactly the same to the interactions between the molecules of each component itself.
b In an ideal solution, each component's activity is equal to its mole fraction under all conditions. The force of attraction between dissimilar molecules are not the same as they were in the pure state. In a non-ideal solution, each component's activity is not equal to its mole fraction under any condition.
c Henry's law is one of the gas laws, formulated by the British chemist, William Henry, in 1803. It states that: At a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid