Technical data

Cooling by evacuation with SMARTsense

Article no: P2340667

Principle

When the air pressure above a watersurface is reduced, the water begins to boil at a certain temperature. The temperature of the water is hereby reduced and further evacuation can finally bring it to 0 °C and even lower.

Benefits

For both demonstration and student experiments
Data logging via tablet with measureAPP

Tasks

Determine the temperature curve of water during pumping.

Learning objectives

Air pressure
Kinetic gas theory
Supercooling

Scope of delivery

Cobra SMARTsense Temperature - Sensor for measuring temperature -40 ... 120 °C (Bluetooth)	12903-00	1
Rubber hose for vacuum, various diameters	39288-00	2
Hose clamp for 12-22 mm diameter	41002-00	2
Rotary valve vacuum pump, two stages, 115 V / 230 V	02741-95	1
Pump plate, complete	02668-88	1
Support base DEMO	02007-55	1
Bell jar, with knob and sealing ring	02668-10	1
Beakers, Boro, high form, various sizes	46030-00	1
Boiling beads, 200 g	36937-20	1
measureAPP - the free measurement software for all devices and operating systems	14581-61	1
Felt sheet, 100 x 100 mm	04404-20	2