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Gas Laws in Space
35
Gas Laws in Space
By Amy Gracia
Charles Gas Law
Volume is directly related to temperature with a constant pressure. Gasses tend to expand when added heat. Therefore both the volume and the temperature increase/move together.
Key Point: Both the volume and temperature move together.
Formula
Charles Gas Law
Example
What will be the volume of a gas sample at 355K if its volume at 273K is 8.57L?
V1 = V2/
T1 = T2
V2 = (8.57)(355)
X (273)
V2 = 11.1L
Example
Boyles Gas Law
Volume is indirectly related to pressure. If the pressure of a gas increases, then the volume of the gas will decrease.
Key Point: They move in opposite directions from each other.
Formula
Boyles Gas Law
Examples
A gas occupies 6.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure is increased to 60.0 mmHg?
V1= 4.60 L V2= X
P1= 1.00 atm P2= 2.50 atm
(4.6)(1) = (2.5)x
x= 1.84 L
Examples
Gay-Lussac's Gas Law
Pressure is directly related to temperature, with a constant volume (temperature must be in Kelvin).
Key Point: Both pressure and temperature move together.
Formula
Gay-Lussac's Gas Law
Examples
The pressure in an automobile tire is 1.88 atm at 25 C. What will be the pressure if the temperature warms up to 37.O C?
P1= 1.88 atm P2= X
T1= 273K + 25C T2= 273K + 37C
(1.88)(298) = X(310)
X= 1.81 atm
Examples
Avagrados Gas Law
The number of roles (n) is directly related to the volume (v) of a gas. So, if the amount of gas increases inside of a container than the volume will increase.
Formula
Avagadro's Gas Law
Examples
The pressure in an automobile tire is 1.88 atm at 25 C. What will be the pressure if the temperature warms up to 37.O C?
P1= 1.88 atm P2= X
T1= 273K + 25C T2= 273K + 37C
(1.88)(298) = X(310)
X= 1.81 atm
Examples
How They Relate
Each law has a specific role in which is applied to outer space travel. For example, Avogadro's Law is applied into the calculation of e amount of gasses astronauts space suits are capable of managing. Because they need to know how much gasses like oxygen their suit can take in without reaching its maximum pressure, and for it to burst it allows to know how to properly manage their room. As for the Boyles Law, is used because most items have to be pressurized since there in no gravity. Therefore, they need to know the max amount of pressurized gas they are available to fit into containers without wasting any available space. Finally, Charles law is used to when we launch rockets up to space. Because of the increase in temperature causes the rocket by the build up of pressure that occurs causes the rockets launch.