Gases Flashcards
Boyle’s law
Volume and PRESSURE is an Inverse relationship
Charles’s Law
Volume and TEMPERATURE have a direct relationship
Avogado’s law
Volume and MOLES have a direct relationship
Dalton’s gas law
the total pressure exerted is equal to the sum of the partial pressures of the individual gases
Celsius to Kelvin
+273(.15)
KPa to ATM
101.3 KPa - 1 atm
mmHg to atm
760 mmHg - 1 atm
torr to atm
760 torr - 1 atm
psi to atm
14.7 psi - 1atm
Ideal Gas Law
pv=nRt or PV/NT = R
STP
1 ATM, 273K, 22.4 L, 1 Mole
Absolute 0 temp
0 Celsius or -273 Kelvin
water vapor
subtracted when using a barometer, affected by temp
Postulates of the Kinetic Molecular Theory of Gases (5)
Gases consist of tiny particles (atoms or molecules).
These particles are so small, compared with the distances between them, that the volume (size) of the individual particles can be assumed to be negligible (zero).
The particles are in constant random motion, colliding with the walls of the container. These collisions with the walls cause the pressure exerted by the gas.
The particles are assumed not to attract or to repel each other.
The average kinetic energy of the gas particles is directly proportional to the Kelvin temperature of the gas.
Kinetic energy formula
𝐾𝐸=1/2𝑚𝑣^2 (m-mass v-velocity)