0:00
Hello students.
00:01
So, in this video the binding energy for 1 mole of helium is given as 2 .730 into 10 to the power 12 joules.
00:14
So, from this we can calculate the binding energy for 1 atom of helium which is equals to the binding energy for 1 mole divided by na which is 6 .023 into 10 to the power 23 joules.
00:30
That gives the value as 4 .53 into 10 to the power minus 12 joule.
00:35
Now, we know that this helium has 2 protons, 2 electrons and 2 neutrons.
00:43
So, we can say that the binding energy for 1 atom will be equals to delta m c square which delta m is the mass defect.
00:59
So, first let us find the mass defect.
01:02
So, the delta m is equals to binding energy for 1 atom by c square.
01:11
That is equals to 4 .53 into 10 to the power minus 12 upon 3 into 10 to the power 8 whole square.
01:24
So, this will give the value as 5 .033 into 10 to the power minus 29...