Pressure | Forces | PHYSICS A. Boyle’s Law Apparatus
Designed for demonstration, the column is clearly visible to the whole class without them having to crowd around the demonstration bench. A wide-bore glass tube is mounted vertically in front of a scale graduated 0 to 65cm3
to the inside of the closed (top) end of the tube. Air is confined in the tube by a coloured oil contained in a metal pressure chamber which is fitted with a Bourdon-type gauge calibrated 0 to 3.4 x 105 Pa. As the pressure in the oil chamber is increased oil is forced into the glass tube and the volume of the contained air and its actual (total) pressure are directly indicated. The tube is of extra strong glass having a very large safety overload margin. As a further precaution a plastic safety screen is secured over the front. Supplied complete with oil. Overall height: 690mm.
B. Light Red Oil E8A41750
250mL each £157.95 each £14.95 C. Boyle’s Law Digital Apparatus
The Digital Boyle’s Law Apparatus provides a self contained, reliable and simple way of demonstrating Boyle’s Law. The volume may be reduced or increased by means of a 2.5ml syringe connected to a digital pressure sensor. The sensor output is calibrated to display the pressure in kPa on the easy to read LCD display. There is a measurable change in pressure for every 0.1ml change in volume allowing many data points to be taken and a graph plotted to confirm Boyle’s Law.
For demonstration purposes two 4mm sockets are provided to allow the pressure reading to be displayed on a large demonstration voltmeter meter (not supplied) and a length of tubing is provided to allow a larger syringe to be used if necessary.
Supplied with full instructions and one 9V PP3 battery.
E8R07372 each £110.95 D. Boyle’s Law (Horizontal Mount)
Designed as a smaller, more economical version of the Standard Boyle’s Law Apparatus.The apparatus consists of a horizontally mounted acrylic tube with a graduated scale along 1 side (scale graduated from 0 to 270cm3
standard gas tap next to which is mounted a standard pressure gauge. The effective length of the tube is controlled by altering the position of a rubber stopper moved via a screw thread. Users can select the effective length of the tube by positioning the stopper and closing the gas tap. The volume of the tube can be read off the scale and printed against the corresponding pressure taken from the gauge. By varying the position of the stopper Boyle’s Law can be investigated. This unit has the advantage of not requiring oil to indicate the volume of air. The tube is made out of acrylic which is known to fail ‘safely’ if punctured.
E8L71663 each £114.95 . The tube unit is sealed by a C . Zero corresponds B