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Question
Calculate the following:
The volume at s.t.p. occupied by a gas “Y” originally occupying 760 cc. at 300K and 70 cm. press, of Hg.
Solution
P1 = 70 cm
V1 = 760 cc
T1 = 300 K
P2 = 76 cm
V2 = ?
T2 = 273 K
Using gas equation `("P"_1"V"_1)/"T"_1 = ("P"_2"V"_2)/"T"_2`
`therefore "V"_2 = ("P"_1"V"_1"T"_1)/("T"_1"P"_2)`
`= (70 xx 760 xx 273)/(300 xx 76) = 637`
∴ V2 = 637 c.c
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