50 ml of hydrogen diffuses out through a small hole from a vessel in 20 minutes the time mended for 40 ml of oxygen to diffuse out is
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Explanation:If 50 ml takes 20 minutes then,
Apply Unitary method,
= 50 20
40 ?or x
Do cross cross
=50×x=40×20
= 4
4/0×2/0
---------
5/0
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