Advertisements
Advertisements
प्रश्न
The atomic mass of Uranium `""_92^238"U"` is 238.0508 u, while that of Thorium `""_90^234"Th"` is 234.0436u, and that of Helium `""_2^4"He"` "is 4.0026u. Alpha decay converts `""_92^238"U"` into `""_92^234"Th"` as, shown below:
`""_92^238"U" -> ( ""_90^234"Th" + ""_2^4"He" + "Energy" )`
Advertisements
उत्तर
The given nuclear reaction is
`""_92^238"U" -> ""_90^234"Th" + ""_2^4"He" + "Energy"`
To find the energy released in the above reaction, we have to find the mass object Δm.
Total mass of the reactants = 238.0508 u
Total mass of the products = 234.0436 + 4.0026
Total mass of the products = 238.0462 u
∴ Δm = 238.0508 - 238.0462
∴ Δm = 0.0046 u
∴ Energy released = 0.0046 x 931.0 MeV
Energy released = 4.28 MeV
APPEARS IN
संबंधित प्रश्न
Boron has two stable isotopes, `""_5^10"B"` and `""_5^11"B"`. Their respective masses are 10.01294 u and 11.00931 u, and the atomic mass of boron is 10.811 u. Find the abundances of `""_5^10"B"` and `""_5^11"B"`.
What do you mean by polar molecules and non-polar molecules? Give ‘one’ example each.
Write one balanced equation to show Emission of `beta^-` (i.e. a negative beta particle)
Two nuclei have mass numbers in the ratio 1: 2. What is the ratio of their nuclear densities?
\[\ce{^197_79Au}\] contains ______.
A vessel contains oil (density 0.8 g/cm3) over mercury (density 13.6 g/cm3). A sphere of homogeneous composition floats with half its volume immersed in mercury and the other half in oil. The density of the material of the sphere in g/cm3 is ______.
Mass numbers of two nuclei are in the ratio of 4 : 3. Their nuclear densities will be in the ratio of ______.
A new type of neutral particle whose mass is very nearly the same as that of a proton is called a:
The relation between the mass number A, atomic number Z, and neutron number N of a nuclide is:
Regarding the stability of the neutron, which statement is correct?
