Fundamental Physicochemical Behaviour Of Ideal Gases Flashcards
What causes gas pressure?
Gas molecules hitting the walls of a container.
What is ventilation?
Inspiration and exhalation of air.
Define external respiration.
Gas exchange between alveoli (lungs) and pulmonary capillaries (blood).
Define internal respiration.
Exchange of gases between blood and cells.
Other than respiration what roles do gases play in pharmacy?
Inhaler devices, anaesthesia and volatile drugs.
What is the Ideal Gas Law used for?
To quantify and predict physicochemical properties of gases to better understand their behaviour.
What’s the eqn. for the Ideal Gas Law?
PV= nRT
True or false: gases are made up of molecules which are in constant random motion in curved lines.
False: replace curved with straight.
True or false: molecules behave as rigid spheres.
True.
True or false: pressure is due to collision of molecules between themselves.
False. Due to collisions between the molecules and the walls of the container.
Is there kinetic energy loss during collision?
No.
True or false. Temperature of gas is equal to the average kinetic energy of the molecules.
False. Proportional, not equal.
True or false: There are no (or negligible) intramolecular forces between the gas molecules.
False: no INTERMOLECULAR forces between gas molecules.
True or false: the volume occupied by the molecules themselves is entirely negligible relative to the volume of the container.
True.
True or false:in a mixture of gases, each gas has its own partial pressure.
True.
