3.3.1 Gas Pressure

• What is gas pressure defined as?

  Force per unit area
• Gas pressure is caused by the constant collisions of gas particles
• Arrange the factors affecting gas pressure in order of their impact, from most to least significant, assuming all other factors remain constant.

  1️⃣ Temperature

  2️⃣ Volume

  3️⃣ Number of particles
• The mathematical formula for pressure is $P =$$\frac{F}{A}$.
• What happens to the kinetic energy of gas particles when temperature increases?

  It increases
• Higher temperatures increase gas pressure due to more frequent and forceful collisions
• The formula $P =$$\frac{F}{A}$ is used to calculate gas pressure.
• Match the factor affecting gas pressure with its effect on pressure:

  Temperature ↔️ Increases with temperature

  Volume ↔️ Increases as volume decreases

  Number of particles ↔️ Increases with more particles
• Gas pressure is caused by the constant collisions of gas particles against the walls of a container
• The formulaP = \frac{F}{A}</latex> is used to calculate gas pressure at a molecular level.
• What is the relationship between gas pressure and the kinetic energy of gas particles?

  Directly proportional
• Gas pressure and temperature have a directly proportional relationship
• The ideal gas law is expressed asPV = nRT</latex>.
• Match the variable in the ideal gas law with its meaning:

  P ↔️ Gas pressure

  V ↔️ Volume

  n ↔️ Number of moles

  R ↔️ Ideal gas constant

  T ↔️ Temperature
• What three main factors influence gas pressure?

  Temperature, volume, particles
• The mathematical expression for gas pressure is $P =$$\frac{F}{A}$, where $F$ is force and $A$ is area
• Gas pressure is defined as the force exerted by gas particles on a surface per unit area
• Higher temperatures increase the kinetic energy of gas particles, leading to more frequent and forceful collisions.
• The formula for gas pressure is $P =$$\frac{F}{A}$, where $F$ is the force and $A$ is the area
• Steps in the molecular-level explanation of gas pressure

  1️⃣ Gas particles collide with container walls

  2️⃣ Each collision exerts a force

  3️⃣ Combined effect over area creates pressure
• Gas pressure is caused by the constant collisions of gas particles against the walls of a container
• Gas pressure increases when the kinetic energy of gas particles increases.
• The kinetic energy of a gas particle is given by the formula $KE =$$\frac{1}{2}mv^{2}$, where $m$ is the mass and $v$ is the velocity
• Match the variable in the kinetic energy formula with its meaning:

  $KE$ ↔️ Kinetic energy

  $m$ ↔️ Mass

  $v$ ↔️ Velocity
• Gas pressure is directly proportional to the force exerted by gas particles and inversely proportional to the area of the container.
• Gas pressure is calculated using the formula $P =$$\frac{F}{A}$, where $F$ is the force and $A$ is the area
• What is the mathematical definition of gas pressure?

  $P =$$\frac{F}{A}$
• Gas pressure increases with the kinetic energy of gas particles.
• The kinetic energy of a particle is given by the formula KE = $\frac{1}{2}mv^{2}$
• Match the variables in the kinetic energy formula with their definitions:

  $m$ ↔️ Mass of the particle

  $v$ ↔️ Velocity of the particle
• What is the relationship between gas pressure and temperature when volume and number of particles are constant?

  Directly proportional
• The ideal gas law is expressed as PV = $nRT$
• Match the variables in the ideal gas law with their definitions:

  $P$ ↔️ Gas pressure

  $V$ ↔️ Volume

  $n$ ↔️ Number of moles

  $R$ ↔️ Ideal gas constant

  $T$ ↔️ Temperature
• According to Boyle's Law, gas pressure increases when volume decreases, assuming temperature and number of particles are constant.
• What is the formula for Boyle's Law?

  $P_{1}V_{1} =$$P_{2}V_{2}$
• Arrange the following applications of gas pressure in order from highest to lowest pressure utilization:

  1️⃣ Aerosol cans

  2️⃣ Pressure cookers

  3️⃣ Filling car tires
• Gas pressure is defined as the force exerted per unit area
• What causes gas pressure at a molecular level?

  Collisions of gas particles
• Gas pressure increases when gas particles have higher kinetic energy.
• Which law describes the relationship between gas pressure and temperature?

  Ideal gas law