Atoms And Nuclei Question 220
Question: 1 g of hydrogen is converted into 0.993 g of helium in a thermonuclear reaction. The energy released is [EAMCET (Med.) 1995; CPMT 1999]
Options:
A) $ 63\times 10^{7}J $
B) $ 63\times 10^{10}J $
C) $ 63\times 10^{14}J $
D) $ 63\times 10^{20}J $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \Delta m=1-0.993=0.007\ gm $
$ \therefore E=(\Delta m)c^{2}=(0.007\times {{10}^{-3}}){{(3\times 10^{8})}^{2}} $ $ =63\times 10^{10}J $ .
