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The atomic masses of the hydrogen isotop...

The atomic masses of the hydrogen isotopes are
Hydrogen `m_1H^1=1.007825` amu
Deuterium `m_1H^2=2.014102` amu
Tritium `m_1H^3=3.016049` amu
The mass of deuterium, `_1H^2` that would be needed to generate 1 kWh

A

(a) `3.7kg`

B

(b) `3.7g`

C

(c) `3.7xx10^-5kg`

D

(d) `3.7xx10^-8kg`

Text Solution

Verified by Experts

The correct Answer is:
D
In one fusion reaction two `_1^2H` nuclei are used.
Hence, total number of `_1^2H` nuclei are 2N.
or `1.125xx10^19` Mass in kg
`=((1.125xx10^19)/(6.02xx10^26))(2)kg`
`=3.7xx10^-8kg`
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