A vessel contains 1.6 g of dioxygen at STP (273.15K, 1 atm pressure). The gas is now transferred to another vessel at constant temperature, where pressure becomes half of the original pressure. Calculate
(i) Volume of the new vessel.
A vessel contains 1.6 g of dioxygen at STP (273.15K, 1 atm pressure). The gas is now transferred to another vessel at constant temperature, where pressure becomes half of the original pressure. Calculate
(i) Volume of the new vessel.
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1 Answer
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This is a Long Answer Type Questions as classified in NCERT Exemplar
P1=1 atm
P2= 1/2=0.5 atm
T1=273.15 K
V2=?
V1=?
32 g dioxygen occupies = 22.4 L volume at STP
∴ 1.6 g dioxygen will occupy = 22.4L x 1.6g / 32g = 1.12 L
V1=1.12 L
From Boyle's law (as temperature is constant)
p1V1=p2V2
V2=p1V1p2
= 1 atm x 1.12 l/0.6 atm g = 2.24 L
(ii) Number of molecules of dioxygen.
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