Definitions/Application
What stays constant according to Gay-Lussac's Law?
Volume and mass
What does P1 represent?
Initial pressure
What does Gay-Lussac's Law state?
The temperature and pressure of a gas is directly proportional when volume and mass is constant
Helium gas in a cylinder has a pressure of 1.12 atm. When the temperature is changed to 310.0 K, the gas has a pressure of 2.56 atm. What was the initial temperature of the gas in the cylinder?
136 K
Temperature and pressure are _____ proportional
Directly
What unit does pressure have to be in?
Any unit as long as the two are the same
P1 = 5.0 atm
T1 = 298 K
T2 = 263 K
P2 = ?
4.4 atm
A sealed can of gas is left near a heater, which causes the pressure of the gas to increase to 1.4 atm. What was the original pressure of the gas if its temperature change was from 20.0°C to 90.0°C?
1.1 atm
What is an example of Gay-Lussac's Law in daily life and why?
Aerosol can or pressure cooker
What unit does temperature have to be in?
Kelvin
P1 = 1.04 atm
T1 = 300.0 K
T2 = 120.0 K
P2 = ?
0.416 atm
A rubber automobile tire contains air at a pressure of 370. kPa at 15.0°C. As the tire heats up, the temperature of the air inside the tire rises to 60.0°C. What would the new pressure in the tire be?
What is an industrial application of Gay-Lussac's Law and why?
Internal combustion engine or tire pressure
0 Kelvin = ? degrees Celsius?
-273.15 degrees Celsius
P1 = 3.65 atm
T1 = 15.0 C
T2 = 60.0 C
P2 = ?
4.24 atm
A sample of neon gas is contained in a bulb at 150°C and 350. kPa. If the pressure drops to 103 kPa, find the new temperature, in °C.
-149 C