gas

- Matter: Anything that has mass and occupies space, including solids, liquids, and gases.

- Gas: A state of matter where molecules are widely spaced and can move freely, filling the volume of their container.

- Pressure: The force exerted by gas molecules against the walls of its container, measured in units such as pascals (Pa) or atmospheres (atm).

- Volume: The amount of space that a substance occupies, typically measured in liters (L) or cubic centimeters (cm³).

- Temperature: A measure of the average kinetic energy of the molecules in a substance, commonly expressed in degrees Celsius (°C) or Kelvin (K).

- Moles: A unit of measurement in chemistry used to express the amount of a substance, representing a specific number of particles (approximately \(6.022 \times 10^{23}\) particles).

- Kinetic Energy: The energy that an object possesses due to its motion, which affects the temperature of gases.

- Boyle’s Law: A gas law that states that the pressure of a given amount of gas is inversely proportional to its volume at a constant temperature.

- Charles’s Law: A gas law stating that the volume of a gas is directly proportional to its temperature at constant pressure.

- Ideal Gas: A theoretical gas composed of many particles that are in constant, random motion, and perfectly obey the gas laws.

- Matter is defined as anything that has weight and occupies space.

- Gases have a fixed volume and shape like solids.

- Pressure is the measure of the force exerted by gas molecules against the container walls.

- The volume of a gas remains constant regardless of its container.

- Temperature is a measurement that reflects the kinetic energy of gas molecules.

- Moles provide a way to count particles in a given mass of a substance.

- Boyle’s Law indicates that increasing the temperature of a gas will decrease its volume.

- Charles’s Law states that a gas will expand when heated at constant pressure.

- Ideal gases do not exist in reality but serve as a model for understanding gas behavior.

- The pressure of a gas increases when its volume decreases, assuming constant temperature.

- The mass of a gas is related to the number of moles and the molar mass of the gas.

- Temperature must be measured in Kelvin when using gas laws.