The half life period of radioactive element is 14 hours. The fraction of the radioactive element that disintegrates in 56 hours is
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The half-life period of a radioactive element is 14 hours. The fraction of the radioactive element that disintegrates in 56 hours is 0. 0625
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The half-life period of a radioactive element is 14 hours. The fraction of the radioactive element that disintegrates in 56 hours is 0.0625
The half-life period of a radioactive element is 14 hours.
The decay constant λ=
t
1/2
0.693
=
14
0.693
=0.0495 /hour
t=56 hours
t=
λ
2.303
log
a−x
a
56=
0.0495
2.303
log
a−x
a
1.20=log
a−x
a
15.98=
a−x
a
a
a−x
=
15.98
1
=0.0625
The fraction of the radioactive element that disintegrates in 56 hours is 0.0625
Explanation:
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