Gas Laws in Pharmaceuticals

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Which of the following is NOT a medical application of gases as mentioned in the text?

Use of isoflurane during anesthesia
Use in intravenous drug delivery (correct)
Oxygen therapy
Use in aerosol dosage forms

In gaseous dosage forms, what properties affect their performance?

Pressure, volume, temperature (correct)
Density and viscosity
Color and odor
Particle size and concentration

What is a distinct property of gases that allows them to fill the entire container they are placed in?

Low intermolecular distances
High kinetic energy (correct)
Definite shape
Definite volume

What do gas molecules do in the container they are confined to, according to the text?

They collide with one another and the walls of the container (B) Signup and view all the answers

Which of the following is true about the effect of intermolecular forces on gases?

Intermolecular forces are negligible in gases due to high kinetic energy (D) Signup and view all the answers

How are gas molecules affected by pressure, volume, and temperature according to the text?

Their motion and collisions change based on these factors (A) Signup and view all the answers

In which gas law is the relationship between volume and temperature of an ideal gas expressed?

Charles' Law (B) Signup and view all the answers

What does Gay-Lussac's law state about the relationship between pressure and temperature?

Pressure is directly proportional to temperature (C) Signup and view all the answers

Which law states that the volume of a gas decreases proportionately as the pressure of the gas increases?

Boyle's Law (B) Signup and view all the answers

Which gas law demonstrates the relationship between volume and moles of gas?

Avogadro's Law (A) Signup and view all the answers

What is the ideal gas law equation that shows the interdependence of temperature, volume, pressure, and number of moles of gas?

$PV = nRT$ (C) Signup and view all the answers

What is the relationship between pressure and temperature at constant volume according to Gay-Lussac's law?

$P_1 = P_2 (T_1 / T_2)$ (A) Signup and view all the answers

What type of systems do aerosols belong to?

Biphasic systems containing liquid droplets in a gas (C) Signup and view all the answers

What is the critical aspect of the pressure of the propellant in an aerosol?

It determines the rate of API expulsion (C) Signup and view all the answers

According to real (non-ideal) gas behavior, when does a gas deviate from ideal gas behavior?

When temperature is lowered and pressure is increased (A) Signup and view all the answers

In an ideal gas model, what is a key characteristic of constituent particles?

Negligible volume and no force exertion (A) Signup and view all the answers

What happens to a gas as its temperature is lowered according to the text?

It deviates from ideal gas behavior (B) Signup and view all the answers

How are intermolecular forces considered in real (non-ideal) gas behavior?

They exist and affect the behavior of gases (A) Signup and view all the answers