1 atm is equal to: A. 1 mmHg B. 14.7 mmHg C. 76 mmHg D. 760 mmHg
2 answers:
Answer : the correct answer is D.
Explanation :
As per the question, the pressure is given as 1 atm.
We know that atmospheric pressure is,
where, is the density of mercury.
g is the acceleration due to gravity.
h is the height of mercury column.
The pressure is said to be 1 atm if the mercury column corresponds to 76 Cm at STP.
This can be written as 76 Cm of Hg.
we know, 1 Cm = 10 mm
Hence, 76 Cm = 76 × 10 mmHg = 760 mmHg
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Answer:
The valid quantum numbers are l=0, l=-2 and l= 2.
Explanation:
Given that,
n = 3 electron shell
Suppose, the valid quantum numbers are
l = 3
m = 3
l = 0
m = –2
l = –1
m = 2
We know that,
The value of n = 3
Principle quantum number :
Then the principal quantum number is 3. Which is shows the M shell.
So, n = 3
Azimuthal quantum number :
The azimuthal quantum number is l.
Magnetic quantum number :
The magnetic quantum number is
Hence, The valid quantum numbers are l=0, l=-2 and l= 2.