Home
Class 12
CHEMISTRY
The source of energy of stars is nuclear...

The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about `10^(7) `. Energy released in the process of fusion is due to mass defect. It is also called `Q`-value. `Q = Delta mc^(2), Delta m =` mass defect.
A star has `10^(40)` deutrons. It produes via the process
`._(1)H^(2) + ._(1)H^(2) rarr ._(1)He^(3) + ._(1)H^(1)`
`._(1)H^(3) + ._(1)H^(3) rarr ._(2)He^(4) + ._(0)n^(1)`
If the average power radiated by the star is `10^(16) W`, when the deutron supply of the star is exhausted in a time of the order of a)`10^(6) s` b)`10^(8) s` c)`10^(12) s` d)`10^(16) s`

A

`10^(6)` sec

B

`10^(8)` sec

C

`10^(12)` sec

D

`10^(16)` sec

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Topper's Solved these Questions

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise psg-VII|5 Videos

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise psg-VIII|5 Videos

  • RADIOACTIVITY AND NUCLEAR TRANSFORMATION

    OP TANDON|Exercise psg-V|3 Videos

  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    OP TANDON|Exercise Single integer|8 Videos

  • SATURATED ALIPHATIC HYDROCARBONS

    OP TANDON|Exercise SINGLE INTEGER ANSWER TYPE QUESTIONS|7 Videos

Similar Questions

Explore conceptually related problems

The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about 10^(7) . Energy released in the process of fusion is due to mass defect. It is also called Q -value. Q = Delta mc^(2), Delta m = mass defect. Fusion reaction takes place at about

The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about 10^(7) . Energy released in the process of fusion is due to mass defect. It is also called Q -value. Q = Delta mc^(2), Delta m = mass defect. Mass equivalent to the energy 931 MeV is

The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about 10^(7) . Energy released in the process of fusion is due to mass defect. It is also called Q -value. Q = Delta mc^(2), Delta m = mass defect. In a nuclear reaction ._(1)H^(2) + ._(1)H^(2) rarr ._(2)He^(3) + ._(0)n^(1) If the masses of ._(1)H^(2) and ._(2)He^(3) are 2.014741 and 3.016977 amu, respectively. then the Q -value of the reaction is nearly.

The source of energy of stars is nuclear fusion. Fusion reaction occurs at very high temperature, about 10^(7) . Energy released in the process of fusion is due to mass defect. It is also called Q -value. Q = Delta mc^(2), Delta m = mass defect. The binding energy per nucleon of ._(1)H^(2) and ._(2)He^(4) are 1.1 MeV and 7 MeV , respectively. If two deuteron nuclei react to form a single helium nucleus, then the energy released is

A star initially has 10^(40) deuterons it product energy via the process _(1)H^(2) + _(1)H^(2) + rarr _(1) H^(3) + p. and _(1)H^(2) + _(1)H^(3) + rarr _(2) He^(4) + n If the deuteron supply of the average power radiated by the state is 10^(16) W , the deuteron supply of the state is exhausted in a time of the order of . The masses of the nuclei are as follows: M(H^(2)) = 2.014 amu, M(p) = 1.007 amu, M(n) = 1.008 amu, M(He^(4)) = 4.001 amu.

A star initially has 10^40 deuterons. It produces energy via the processes _1H^2+_1H^2rarr_1H^3+p and _1H^2+_1H^3rarr_2He^4+n . If the average power radiated by the star is 10^16 W, the deuteron supply of the star is exhausted in a time of the order of (a) 10^6s (b) 10^8s (c) 10^12s The masses of the nuclei are as follows M(H^2)=2.014 amu, M(n)=1.008 amu, M(p)=1.007 amu, M(He^4)=4.001 amu

A star initially has 10^40 deuterons. It produces energy via the processes _1H^2+_1H^2rarr_1H^3+p _1H^2+_1H^3rarr_2He^4+n The masses of the nuclei are as follows: M(H^2)=2.014 amu' M(p)=1.007 amu, M(n)=1.008 amu, M(He^4)=4.001 amu if the average power radiated by the star is 10^16W , the deuteron supply of the star is exhausted in a time of the order of

A star initially has 10^40 deuterons. It produces energy via the processes _1^2H+_1^2Hrarr_1^3H+p and _1^2H+_1^3Hrarr_2^4He+n . Where the masses of the nuclei are m( ^2H)=2.014 amu, m(p)=1.007 amu, m(n)=1.008 amu and m( ^4He)=4.001 amu. If the average power radiated by the star is 10^16 W , the deuteron supply of the star is exhausted in a time of the order of

In a nuclear fusion reaction, if the energy is released then