(a) Two identical open boxes originally contain the same volume of water. One is kept at 15°C and the other at 85°C for the same
length of time.
Fig. 4.1 shows the final water levels.
With reference to the energies of the water molecules, explain why the levels are different.
Fig. 4.1 shows the final water levels.
With reference to the energies of the water molecules, explain why the levels are different.
1 answer:
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Answer:
Density of 127 I =
Also,
Explanation:
Given, the radius of a nucleus is given as
.
where,
- A is the mass number of the nucleus.
The density of the nucleus is defined as the mass of the nucleus M per unit volume V.
For the nucleus 127 I,
Mass, M =
Mass number, A = 127.
Therefore, the density of the 127 I nucleus is given by
On comparing with the density of the solid iodine,