10-2 Flashcards
What is the formula for Boyles Law and define the variables.
PV = P’V’
P is the original pressure on a volume of gas & P’ is a changed pressure & V is a volume of gas & V’ is a changed volume resulting from a change in pressure.
State Boyles Law.
A volume of a gas varies inversely with it’s pressure if and only if temperature is constant.
Why was the Kelvin temp. scale developed?
Lord Kelvin est. a temp that has no negative values to avoid inaccurate calculations.
When does Boyles Law not hold true?
Boyles Law does not hold true at very high pressures.
Why doesn’t Boyles Law hold true at very high pressures?
It cannot hold true at very high P because volume cannot decrease to zero.
State Charles Law.
The V of a gas varies directly with the Kelvin T if and only if P is constant.
State the formula for Charles Law and define variables.
V/T = V’/T’
Where V and T are the original volume and temp and V’ & T’ are the changed volume and temperature.
Why does Charles Law not
hold true for very low temps?
Because vol cannot decrease to zero and disappear.
When is Charles Law not true? Why?
Charles Law is not true at low temps and b/c it would decrease volume to zero.
What is the value of absolute zero?
-273 C*
What happens to matter at absolute zero?
Creases motion
How do you convert C* to K?
Add 273
State Gay-Lussacs Law.
The pressure exerted by a gas varies directly w/ the Kelvin T iff V is constant.
What is the formula for Gay-Lussacs Law & define the variables.
P/T = P’/T’
Where P and T are the original P and T of a gas & P’ and T’ are the changed.
What is the form. for the Combined Gas Law & define variables.
V’/V = P/P’ • T’/T
Exists because V, P, and T can all be changed at the same time.
