Volume and pressure Flashcards
1
Q
Define: volume
A
Volume: quantity describing the space a substance occupies (equals volume of container)
2
Q
Define: pressure
A
the force exerted on a unit area of a surface by the particles of a gas as they collide with the surface.
3
Q
pressure equation?
A
Pressure=force/area
4
Q
as compression increases…
A
pressure increases
5
Q
define: partial pressure
A
pressure exerted by one compound of a mixture of gases. Total pressure equals the sum of partial charges.
6
Q
1mL=
A
1cm^3
7
Q
1L=
A
10^3cm^3 = 1000cm^3
8
Q
1m^3=
A
100^3cm^3
9
Q
Base unit of pressure?
A
Newtons per square metre: Nm-2
10
Q
Pascal (Pa)
A
1 Nm-2
11
Q
Kilopascal (kPa)
A
1000 Nm-2
12
Q
Bar
A
100 kPa = 100000 Nm-2
13
Q
Define: standard atmosphere
A
: pressure required to support 760mmHg in a mercury barometer at 25*C.
14
Q
atmosphere (atm)
A
101.3kPa
