Types of Solutions in Pharmaceutics

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What properties characterize ideal solutions?

Volume shrinkage or expansion occurs when mixing constituents

Heat is evolved or absorbed during formation

Average constitutive properties of pure individual constituents (correct)

Non-uniform attractive forces between components

In an ideal solution, what happens to the volume when similar constituents are mixed?

Volume increases

Volume decreases

Volume remains the same (correct)

Volume fluctuates

What is the escaping tendency in a solution?

Uniform flow of each constituent from lower to higher concentration

Heat absorption by all constituents

Heat flow from colder body to hotter body

Flow of each constituent from higher to lower concentration (correct)

According to Raoult's Law, what is the relationship between partial vapor pressure and mole fraction in an ideal solution?

Partial vapor pressure is directly proportional to mole fraction Signup and view all the answers

What happens to the partial vapor pressure of each volatile constituent in an ideal solution according to Raoult's Law?

Equals the vapor pressure of the pure constituent Signup and view all the answers

How do ideal solutions differ from real solutions?

Ideal solutions have constitutive properties that are not averages of pure constituents' properties Signup and view all the answers

What is the term used for a mixture of two or more substances which form a homogeneous molecular dispersion?

Solution Signup and view all the answers

Which type of substances yield ions and conduct electric current through the solution?

Electrolytes Signup and view all the answers

What are substances classified as that do not yield ions when dissolved in water and do not conduct electric current?

Nonelectrolytes Signup and view all the answers

Which type of electrolyte includes substances like AgCl and Potassium acid tartarate?

Slightly soluble electrolytes Signup and view all the answers

A super saturated solution is a solution that contains __________.

More solute than it can normally hold at a given temperature Signup and view all the answers

An unsaturated solution is a solution that __________.

Can dissolve more solute at a given temperature Signup and view all the answers

What type of solution contains more of the dissolved solute than the saturation point?

Super saturated solution Signup and view all the answers

In which state of matter does solid-in-liquid solutions find the most applications in practice?

Solid-in-liquid Signup and view all the answers

What is a characteristic of an unsaturated solution?

Dissolved solute is less than that necessary for complete saturation Signup and view all the answers

How many types of solutions are possible based on the states of matter?

Nine Signup and view all the answers

What is the state of the dissolved solute in a saturated solution?

In equilibrium with solid phase Signup and view all the answers

What is essential in inducing polarity in a molecule?

Unsymmetrical distribution of electrons between atoms Signup and view all the answers