Grade 9Physical Chemistry
Calculate the Volume occupied by 5.25g of Nitrogen at 26 degree cecius and 74.2cm of pressure
Calculate the Volume occupied by 5.25g of Nitrogen at 26 degree cecius and 74.2cm of pressure
2 Answers
Kartikey sharma
Approved Tutor Answer12 Years agoP= 74.2/76 atm
V=?
m=5.25 g
M = 28 g
T=273+26
T=299 K
PV=nRT
74.2/76 x V= m/M x 0.0821 x 299
V=5.25 x 0.0821 x 299 x 76 /74.2
V=4.71074201 L
Ayush kumar
We know that PV=nRT
So V=nRT
P
For n
n= w/M
So 5.35/28. (Mol. Wt. Of N2 is 28) and when it is not given then we take their gas not atom
T is taken in Kelvin. So 273+26=299
And pressure in atm 7.42/76
V=5.35×0.082×299×76.
74.2
=4.71.Answer
Answer=4.71 and this question is from book written by RC mukherjee pg no 16 qno 11
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