Fluids & Gases Flashcards
1
Q
Flow = ?
A
Flow = ΔPπr4/8Lƞ
ΔP = pressure difference
ƞ = viscosity
(Poiseuille’s Law )
2
Q
Within a pipe system, the speed of flow and cross sectional area are related by what formula?
A
a1v1 = a2v2
3
Q
Work = (pressure?)
A
W = PΔV
4
Q
What does 1 L*atm =?
A
101.325 J
5
Q
Volume flow rate =
A
= av
6
Q
Pressure total =
A
atmospheric pressure + gauge pressure
7
Q
In a hydraulic press, pressure =
A
P = F/A
8
Q
atm to mmHg to torr to Pa
A
1 atm = 760 mmHg = 760 torr = 101,325 Pa
9
Q
Boyle’s Law
A
P1V1=P2V2
10
Q
Charle’s Law
A
V1/T1 = V2/T2
11
Q
Guy-Lussac’s Law
A
P1/T1 = P2/T2
12
Q
Avogadro’s Principle
A
n1/V1 = n2/V2
13
Q
Combined Gas Law
A
P1V1 /T1 = P2V2 / T2
14
Q
Ideal Gas Law
A
PV = nRT
15
Q
1 mol of gas at STP =
A
22.4 L
16
Q
Freezing point depression & Boiling point elevation
A
Tf = iKfm
Tb = iKbm
i = van’t Hoff factor
m= molality
