균형 맞추기. Br2 + I2 → IBr3

균형 맞추기. Br2 + I2 → IBr3

Br2(l) + I2(s) → IBr3(s)

 

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▶ 참고: 미정계수법 [ https://ywpop.tistory.com/3902 ]

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aBr2 + bI2 → cIBr3

 

 

Br: 2a = 3c ... (1)

I: 2b = c ... (2)

 

 

a = 1 이라 두면,

from (1), 2 = 3c

c = 2/3

 

from (2), 2b = 2/3

b = 1/3

 

 

계수는 정수이여야 하므로,

a = 3

b = 1

c = 2

 

 

답: 3Br2 + I2 → 2IBr3

3Br2(l) + I2(s) → 2IBr3(s)