Mole ConceptHard
Question
When 500 ml CO2 gas is passed through red hot charcoal, the volume becomes 700 ml. The volume of CO2 converted into CO is
Options
A.200 ml
B.300 ml
C.350 ml
D.500 ml
Solution
CO2 + C(s) → 2CO
V mL 2V mL
Hence, increase in volume is 2V − V = 700 − 500 ⇒ V = 200
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