When both a and b moves the relative velocity vap should be used UAB= VOA+UB
When both A and B moves, the relative velocity VAB should be used. ( ) 2 2 A B = A + B
aRT nM “最可几速率
i i M RT 8 = “最可几速率
8RT 8RT8RT M +M A B VIMA MB V T MMB MM B (reduced mass) M+M B BRT AB
RT AB 8 = A B A B M M M M + = A B A B A B AB M M RT M M M RT M RT + = + = 8 8 8 (reduced mass)
2 8RTINN B AB AB Vxn(V人v 2 8RT/Ln Ln =/ABv Au( V 8RT nl d AB LAB]
[ ][ ] 8 8 8 2 2 2 2 A B RT L d V Ln V RT Ln d V N V RT N Z d A B A B A B A B A B A B = = =
Decomposition ofHI 2HI=H2+12 aRT Z=nL d AB AB LABI AA 32n./8R7 1aD47 Aa
Decomposition of HI: 2 HI = H2 + I2 2 2 2 [ ] 8 2 2 A M RT Z L d A AA AA = [ ][ ] 2 2 8 A B RT Z L d A B A B = ?