Change of state of gases Isothermal and isochoric change of state of air Features - isothermal and isochoric change of state of air - GUNT software for acquisition, processing and display of measured data Learning objectives/experiments - demonstrating the laws of state changes in gases experimentally - isothermal change of state, Boyle-Mariotte law - isochoric change of state, Gay-Lussac’s 2nd law Specification [1] experimental investigation of gas laws [2] transparent measuring tank 1 for investigation of isothermic change of state [3] hydraulic oil filling for changing volume of test gas [4] test gas volume determined by level measurement in the tank with differential pressure sensor [5] built-in compressor generates necessary pressure differences to move the oil volume [6] compressor can also be used as vacuum pump [7] 5/2-way valve for switching between compression and expansion [8] transparent measuring tank 2 for investigation of isochoric change of state [9] electrical heater with temperature control in tank 2 [10] sensors for temperatures, pressures in both tank [11] digital displays for temperatures, pressures and volume [12] GUNT software for data acquisition via USB under Windows 10 Technical data Compressor / vacuum pump - power output: 90W - pressure at inlet: 213mbar - pressure at outlet: 2bar Temperature controller: PID, 300W, limited to 70°C Measuring ranges - temperature: -- tank 1: 0...70°C -- tank 2: 0...70°C - pressure: -- tank 1: 0...4bar abs. -- tank 2: 0...2bar abs. - volume: -- tank 1: 0...3L 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 900x550x900mm Weight: approx. 50kg