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Chapter 43: Q11P (page 1331)

Calculate the disintegration energy Q for the fission of C52rinto two equal fragments. The masses you will need are

role="math" localid="1661753124790" C52r51.94051M26g25.98259u

Short Answer

Expert verified

The disintegrated energy is -23MeV.

Step by step solution

01

Given data

The mass of C52r,mcr=51.94051u

The mass ofM26g,mMg=25.98259u

02

Determine the formula to calculate the disintegrated energy.

The expression to calculate the disintegrated energy is given as follows.

Q=鈥�鈭�mc2Q=(mCr鈥�2mMg)c2 ...(i)

03

Calculate the value of disintegrated energy.

Consider the fission reaction as given follow.

C52r鈫�M26g+M26g

Calculate the disintegrated energy.

Substitute51.94051u for mCr,25.98259u for MMgand931.5MeV/u forc2 into equation (i).

Q=51.9405u-2脳25.98259u931.5MeV/uQ=-0.02467脳931.5MeVQ=-23MeV

Hence the disintegrated energy is -23MeV.

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Most popular questions from this chapter

The nuclide238Np requires4.2 MeVfor fission. To remove a neutron from this nuclide requires an energy expenditure of 5.0 MeV. Isfissionable by thermal neutrons?

The effective Q for the proton鈥損roton cycle of Fig. 43-11 is 26.2 MeV. (a) Express this as energy per kilogram of hydrogen consumed. (b) The power of the Sun is 3.9x1026W. If its energy derives from the proton鈥損roton cycle, at what rate is it losing hydrogen? (c) At what rate is it losing mass? (d) Account for the difference in the results for (b) and (c). (e) The mass of the Sun is 2.0x1030kg. If it loses mass at the constant rate calculated in (c), how long will it take to lose 0.10% of its mass?

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