Graph of Energies

Graph of Energies - 1.00E-10 2.00E-10 2.50E-10 3.00E-10...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1.00E-10 2.00E-10 2.50E-10 3.00E-10 4.00E-10 5.00E-10 6.00E-10 7.00E-10 7.50E-10 8.00E-10 9.00E-10 1.00E-09 -1.44E+10 -7180000000 -5744000000 -4786666667 -3590000000 -2872000000 -2393333333 -2051428517 -1914666667 -1795000000 -1595555556 -1436000000 73200 36600 29280 24400 18300 14640 12200 10457 9760 9150 8133 7320 -1.44E+10 -7179963400 -5743970720 -4786642267 -3589981700 -2871985360 -2393321133 -2051418060 -1914656907 -1794990850 -1595547423 -1435992680 80000 70000 60000 50000 40000 30000 20000 10000 0 0 2000000000 0 -2000000000 2 A = InterAtomic Radius in NanoMeters B = Ea = Attractive Energy between Atoms C = Er = Repulsive Energy between Atoms The Net Energy Between two Atoms is derived from the Experssion Because, it would be the total Energy, from Attraction and Repulsion -4000000000 -6000000000 -8000000000 -10000000000 -12000000000 -14000000000 -16000000000 0.00E+00 0.00E+00 -2.00E+09 -4.00E+09 -6.00E+09 -8.00E+09 -1.00E+10 -1.20E+10 -1.40E+10 -1.60E+10 1 2 3 2.00E -1.00E+10 -1.20E+10 -1.40E+10 -1.60E+10 1 2 3 Question 2.20 eV/Atom, Ion, Bonding Type Ionic Covalent Metallic Substance NaCl MgO Si C (diamond) Hg Al Fe W van der Waals Hydrogen Ar Cl2 NH3 H2 O kJ/mol 640 1000 450 713 68 324 406 849 7.7 31 35 51 Molecule 3.3 5.2 4.7 7.4 0.7 3.4 4.2 8.8 0.08 0.32 0.36 0.52 Melting Temperatur e (C) 801 2800 1410 >3550 -39 660 1538 3410 -189 -101 -78 0 4000 3500 3000 2500 2000 1500 1000 500 0 -500 0 200 As per Approximating the Bonding Energy for Molybdenum It should b for Molybdenum is about 2617 C. Thus it is safe to say that the Bondin to Lower 700Kj/mol. 80000 70000 60000 50000 40000 Column C 30000 20000 10000 0 0 2000000000 0 -2000000000 -4000000000 -6000000000 Column B -8000000000 -10000000000 -12000000000 -14000000000 -16000000000 0.00E+00 0.00E+00 -2.00E+09 -4.00E+09 -6.00E+09 -8.00E+09 -1.00E+10 -1.20E+10 -1.40E+10 -1.60E+10 1 2 3 4 5 6 7 8 9 10 11 12 Column D Column C 2 4 6 8 10 12 14 2.00E-10 4.00E-10 6.00E-10 8.00E-10 1.00E-09 1.20E-09 Column D -1.00E+10 -1.20E+10 -1.40E+10 -1.60E+10 1 2 3 4 5 6 7 8 9 10 11 12 0 7.7 31 35 51 68 324 406 450 640 713 849 1000 4000 3500 3000 2500 2000 1500 1000 500 0 -500 0 200 -500 Referance Point -189 -101 -78 0 -39 660 1538 1410 801 3550 3410 2800 Column J 400 600 800 1000 1200 ergy for Molybdenum It should be between 640 Kj/mol & 713 Kj/mol, Because the stated Melting Temperature s it is safe to say that the Bonding energy, approximated for Molybdenum, should be around upper 600Kj/mol Repulsion Energy Red Line = Distance in Nanometers Blue Line = Attractive Energy between Atoms Net Energy between Atoms Although The net energy could be br graphed using excel's abilities, the illiustration to the left shows a combination e Estimated E0 for Nacl would be approximately 0.30 nanometers. The correct value for Interatomic radius is approxim The Bond Energy in Electron volt, eV, therotically would be 4.26eV, where as approximately from the curve it is aroun Graph of Bonding Energy vs. Melting Temperature eft shows a combination energy curve. ratomic radius is approximately 0.282010 nanometers. y from the curve it is around 4eV, which quite closely agrees. ...
View Full Document

Ask a homework question - tutors are online