Dik energi ikatan rata2 sbb C rangkap 2= 609kj/mol C-c= 348 kj/mol C-h=413 kj/mol H-cl=431 kj/mol C-cl= 328 kj/mol Tentukkan perubahan entalphi reaksi Ch2=ch-ch
Kimia
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Pertanyaan
Dik energi ikatan rata2 sbb
C rangkap 2= 609kj/mol
C-c= 348 kj/mol
C-h=413 kj/mol
H-cl=431 kj/mol
C-cl= 328 kj/mol
Tentukkan perubahan entalphi reaksi
Ch2=ch-ch3+h-cl menghasilkan ch3-ch-ch3 '
Cl
C rangkap 2= 609kj/mol
C-c= 348 kj/mol
C-h=413 kj/mol
H-cl=431 kj/mol
C-cl= 328 kj/mol
Tentukkan perubahan entalphi reaksi
Ch2=ch-ch3+h-cl menghasilkan ch3-ch-ch3 '
Cl
1 Jawaban
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1. Jawaban chemistry101
DH = entalpi reaktan - entalpi produk
entalpi reaktan = 6(C-H)+ C=C + C-C + H-Cl
= (6x413) + 609 +348+431
= 3866 kJ/mol
entalpi produk = 7(C-H)+ C-Cl + 2(C-C)
= (7×413)+328+(2×348)
= 3915 kJ/mol
DH = 3866 - 3915
= - 49 kJ/mol