Density , Pressure And Gas Lawss Flashcards
(26 cards)
What is the formula for density?
Density = Mass / Volume
True or False: Pressure is defined as force per unit area.
True
What unit is pressure commonly measured in?
Pascals (Pa)
Fill in the blank: The density of water is approximately ______ g/cm³.
1
What is the equation for pressure in a fluid at a certain depth?
Pressure = Density × Gravitational Acceleration × Height
Which gas law states that the volume of a gas is inversely proportional to its pressure at constant temperature?
Boyle’s Law
What is the equation for Boyle’s Law?
P1 × V1 = P2 × V2
True or False: Charles’s Law states that the volume of a gas is directly proportional to its temperature at constant pressure.
True
What is the equation for Charles’s Law?
V1 / T1 = V2 / T2
What does Avogadro’s Law state?
Equal volumes of gases at the same temperature and pressure contain an equal number of molecules.
What is the equation for Avogadro’s Law?
V1 / n1 = V2 / n2
What is the ideal gas law equation?
PV = nRT
In the ideal gas law, what does ‘R’ represent?
The ideal gas constant
Fill in the blank: The ideal gas law can be used to calculate the ______ of a gas.
pressure, volume, temperature, or number of moles
What is the relationship between pressure and temperature in Gay-Lussac’s Law?
Pressure is directly proportional to temperature at constant volume.
What is the equation for Gay-Lussac’s Law?
P1 / T1 = P2 / T2
True or False: Density increases with increasing temperature for most substances.
False
What is the unit of density in the SI system?
kg/m³
What happens to the volume of a gas if its temperature is doubled while keeping pressure constant?
The volume will double.
Fill in the blank: The buoyant force on an object submerged in a fluid is equal to the weight of the ______ displaced.
fluid
What is the equation for calculating buoyant force?
Buoyant Force = Density of Fluid × Volume of Displaced Fluid × g
What does the term ‘absolute pressure’ refer to?
The total pressure measured relative to a perfect vacuum.
What is the relationship between altitude and air pressure?
Air pressure decreases with increasing altitude.
Fill in the blank: The standard atmospheric pressure at sea level is ______ atm.
1
