All Flashcards
Define 'Ideal Gas'.
A theoretical gas that perfectly obeys the ideal gas law, with particles having negligible volume, no intermolecular forces, and undergoing elastic collisions.
What is 'Pressure (P)' in the context of the Ideal Gas Law?
The force exerted per unit area by the gas on the walls of its container, usually measured in Pascals (Pa) or atmospheres (atm).
Define 'Volume (V)' in the Ideal Gas Law.
The amount of space occupied by the gas, typically measured in cubic meters (m³) or liters (L).
What is 'Temperature (T)' in the Ideal Gas Law?
A measure of the average kinetic energy of the gas particles, always measured in Kelvin (K).
Define 'Absolute Zero'.
The theoretical temperature at which an ideal gas would have zero pressure and minimal kinetic energy; 0 Kelvin or -273.15°C.
Define 'Number of Moles (n)'.
A unit of measurement for the amount of substance, representing 6.022 x 10^23 particles (Avogadro's number).
What is the effect of increasing the temperature of a gas in a closed container (constant volume)?
The pressure of the gas increases.
What is the effect of decreasing the volume of a gas at constant temperature?
The pressure of the gas increases (Boyle's Law).
What is the effect of increasing the number of moles of gas in a container at constant volume and temperature?
The pressure of the gas increases.
What is the effect of increasing the temperature of a gas in a container with a movable piston (constant pressure)?
The volume of the gas increases (Charles' Law).
What happens when a real gas is compressed to a very high pressure?
It deviates significantly from ideal gas behavior due to increased intermolecular forces and non-negligible particle volume.
What is the effect of increasing the temperature of a gas in a closed container with constant volume?
The pressure of the gas increases.
What happens to the volume of a gas if the pressure is decreased at a constant temperature?
The volume increases (Boyle's Law).
What happens if the number of moles of gas in a container increases, while volume and temperature are constant?
The pressure increases.
What is the effect of decreasing the temperature of a gas in a container at constant pressure?
The volume decreases (Charles' Law).