Product details

Determination of the heat of formation for CO2 and CO (Hess' law)

Determination of the heat of formation for CO2 and CO (Hess' law)

Item no.: P3021601
While stocks last

Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
  • Description
  • Scope of Supply
  • Accessories
  • Downloads and Documents

Principle

The standard molar enthalpies of formation ΔBHΦ are important compiled thermodynamic tabulation quantities for calculating standard enthalpies of reaction for any arbitrary reaction. They are defined as the heat of reaction occurring in the direct formation of one mole of the pertinet pure substance from the stable pure elements at constant pressure. For spontaneous and quantitative formation reactions, e.g. the conversion of carbon and oxygen to CO2, standard enthalpies of formation can be measured directly using calorimetry. Alternativly, they can be calculated from known entahlpies of reaction using Hess' law.

Benefits

  • Glass jacket system easily expandable
  • Stable and safe construction due to solid stand material

Tasks

  1. Determine the enthalpies of reaction for the combustion of carbon and carbon monoxide calometrically.
  2. Use the experimentally determined enthalpies and Hess' law to calculate the enthalpies of formation of CO and CO2.

What you can learn about

  • First law of thermodynamics
  • Thermochemistry
  • Calorimetry
  • Enthalpy of formation
  • Enthalpy of reaction
  • Hess' law

Necessary accessories

  • Precision balance 620g/0.001g

 

Device Name Item no. Qty
Barrel base expert 02004-55 1,00
U-tube with lateral connector, GL 25 MAU-27229500 1,00
Scissors,straight,blunt,l 140mm 64625-00 1,00
Reducing valve f.oxygen 33482-00 1,00
Hose clip, diam. 8-16 mm, 1 pc. 40996-02 4,00
Safety gas tubing, DVGW, sold by metre 39281-10 1,00
Universal clamp 37715-00 7,00
Support rod, stainless steel, l = 250 mm, d = 10 mm 02031-00 2,00
Test tube,180x20 mm, PN1 36293-00 1,00
Glass wool 10 g 31773-03 1,00
Commercial weight, 500 g 44096-50 1,00
Gasometer 1000 ml 40461-00 1,00
Lighter f.natural/liquified gases 38874-00 1,00
Water jet pump, plastic 02728-00 1,00
Stopcock,3-way,t-shaped, glass 36731-00 1,00
Weather monitor, 6 lines LCD 87997-10 1,00
Funnel, glass, top dia. 50 mm 34457-00 1,00
Charcoal,small pieces 250 30088-30 1,00
Table stand for 2 l steel cylinders 41774-00 1,00
Rubber tubing, i.d. 6 mm 39282-00 5,00
Thermometer -10...+50 °C 38034-00 2,00
Combustion lance for gases 02613-00 1,00
Test tube GL25/8, w.hose connec. 36330-15 1,00
Teclu burner, DIN, natural gas 32171-05 1,00
Magnetic stirring bar 30 mm, cylindrical 46299-02 1,00
Tweezers,straight,blunt, 200 mm 40955-00 1,00
Rubber stopper, d=22/17 mm, without hole 39255-00 1,00
Magnet, d = 10 mm, l = 200 mm 06311-00 1,00
Retort stand, h = 750 mm 37694-00 2,00
Round bottom flask, 100ml, GL 25/12 35841-15 1,00
Sulphuric acid, 95-98% 500 ml 30219-50 1,00
Steel cylinder oxygen, 2 l, filled 41778-00 1,00
Protective glasses, green glass 39317-00 1,00
Paper,ceram.fibre,1.0x500x2000mm 38750-01 1,00
Glass jacket 02615-00 1,00
Graduated vessel, 1 l, with handle 36640-00 1,00
Techn. magnifier, 10x, d:23mm 64598-00 1,00
Mortar with pestle, 150 ml, porcelain 32604-00 1,00
Hose clip f.12-20 diameter tube 40995-00 2,00
Rub.stop.d=38/31mm,1 hole 15mm 39260-19 1,00
Formic acid 75% 250 30023-25 1,00
Right angle boss-head clamp 37697-00 6,00
Support base DEMO 02007-55 1,00
Funnel for gas generator, 50 ml, GL18 35854-15 1,00
Water, distilled 5 l 31246-81 1,00
Pinchcock, width 15 mm 43631-15 1,00
Wrench for steel cylinders 40322-00 1,00
Test tube holder, up to d 22mm 38823-00 1,00
Calorimeter insert for glass jacket 02615-01 1,00
Glass tubes,right-angled, 10 36701-59 1,00
Glycerol, 250 ml 30084-25 1,00
Document     Filesize
p3021601e.pdf Experiment guide, English 388.04 KB

Follow us on
Facebook YouTube
PHYWE - excellence in science
  • 0
  •