Calculate the volume occupied by 7 g of N2 gas at 27° C and 2 bar pressure. (N = 14, R = 0.083 bar l/mol-K).
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Answer:
3.1125L
Explanation:
Formula-
n=W/M
(W=mass given
M=Molecular mass)
PV=nRT
PV=WRT/M
V=WRT/PM
(P is pressure
V is volume
n is no. of moles
R is constant
T is temperature)
T should be in Kelvin
K=C+273
(where K is temperature in Kelvin
and C is temperature in Celsius)
K=27+273
K=300K
M of N2= 14+14=28g
V=WRT/PM
V=7×0.083×300/2×28
V=0.083×150/4
V=0.083×75/2
V=6.225/2
V=3.1125L
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