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2 answers:
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Explanation:
Entropy means the amount of randomness present within the molecules of the body of a substance.
Relation between entropy and microstate is as follows.
S =
where, S = entropy
= Boltzmann constant
= number of microstates
This equation only holds good when the system is neither losing or gaining energy. And, in the given situation we assume that the system is neither gaining or losing energy.
Also, let us assume that = 1, and
= 0.833
Therefore, change in entropy will be calculated as follows.
=
=
=
or, =
Thus, we can conclude that the entropy change for a particle in the given system is J/K particle.
Answer:
a) Binding Energy = 1084.266 MeV
b) Binding energy per nucleon = 8.28 MeV
Explanation:
Binding Energy,
Where ΔM = Mass defect of Iodine-131
The mass of iodine-131 = 130.906124 u.
Number of protons in Iodine-131 = 53
Number of neutrons in Iodine-131 = 78
Mass of a proton = 1.007276 u
Mass of neutron = 1.008664 u
Total mass of the 53 protons in Iodine-131 = (53*1.007276)
Total mass of the 53 protons in Iodine-131 = 53.39 u
Total mass of the 78 protons in Iodine-131 = (78*1.008664)
Total mass of the 78 protons in Iodine-131 = 78.68 u
Binding Energy = 1.164 * 931.5
Binding Energy = 1084.266 MeV
b) Binding Energy per nucleon
The mass of the nucleon of iodine 131 = 130.906124
Binding Energy per nucleon = 1084.266/130.906124
Binding energy per nucleon = 8.28 MeV