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When a mixture of 10 moles of SO(2) and ...

When a mixture of 10 moles of `SO_(2)` and 15 moles of `O_(2)` was passed over catalyst, 8 moles of `SO_(3)` was formed. How many moles of `SO_(2)` and `O_(2)` did not enter into combination?

A

375

B

187

C

360

D

150

Text Solution

Verified by Experts

The correct Answer is:
D
`2SO_(2)+O_(2) Leftrightarrow 2SO_(3)`
Eq. mol (0.3-2x) (0.2-x) 2x
`2x=0.2, x=0.1, P_(SO_(2))=(0.1)/(0.4) xx 750 =187`
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