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Idiomas disponibles
Idiomas disponibles
2. Technical data
Main cylinder:
Length:
Internal diameter:
Maximum pressure:
Piston:
Volume:
Dead space volume V
Scale:
Length:
Divisions:
Manometer:
Pressure range:
Diameter:
Tolerance class
3. Operation
•
Turn the piston back and forth a little so that
the gaskets come into contact with the sili-
cone oil.
•
Set the piston to the desired point, e.g. 20
cm and let air into the cylinder to equalise
the air inside with the surrounding atmos-
phere (p = 1 bar).
•
Close the air inlet/outlet valve.
•
Move the piston to a new position by turn-
ing the threaded shaft.
•
Read off the piston position s and the pres-
sure p.
•
Calculate the volume V using the following
expression
2
d
= ⋅ π ⋅
+
where d = 50 mm, V
V
s
V
0
4
cm³
•
Plot the measurements on a graph.
Note: the amount of air with which the Boyle's
law apparatus is filled depends on the position
of the piston when the pressure was equalised
with the surrounding atmosphere. The maxi-
mum quantity of air inside is reached when the
piston is at 20 cm.
3B Scientific GmbH ▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany ▪ www.3bscientific.com
230 mm
50 mm
3.5 bars
22 mm x 50 mm diam.
410 cm³
: 20 cm³ approx.
0
200 mm
1 mm
0 – 4 bars
100 mm
1
= 20
0
Subject to technical amendments
© Copyright 2013 3B Scientific GmbH
Fig. 1 Pressure-volume diagram for air at room tem-
perature with three different amounts of substance
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