Answer:
1,239,284pa
Explanation:
Assuming it's an ideal gas we use
PV=nRT
P=nRT/V
then we convert our Temperature into Kelvin
T=25+273.15 =298.12K
we convert our volume into M cubed
1.5L =0.0015 cubic meter
P=nRT/V
P= (0.75×298.12×8.314)/0.0015
P = 1,239,284pa
Answer:
2,1,-1
Explanation:
The electronic configuration of oxygen is
The valence electrons are in the second principle quantum number, which means that the value of n = 2.
For, n =2,
l can be 0 or 1 which corresponds to s and p orbital respectively.
If l = 1 , which is p orbitals and it exits in 3 degenerate orbitals which has values of m = -1 , 0 , +1
<u>So, The possible set pf quantum number for the outermost valence electron of the oxygen atom is 2, 1, -1.</u>
There are 7 valence electrons in the atom :)
The velocity will increase