In a reactor, an element X decays to a radioactive element Y, at a constant rate r atoms per second. Each decay reaction releases energy `E_(1)`. Half

Monjur Alahi

In a reactor, an element X decays to a radioactive element Y, at a constant rate r atoms per second. Each decay reaction releases energy `E_(1)`. Half life of element Y is equal to T and decays to a stable element. During each decay of Y, energy `E_(2)` is released. If at `t=0`, there was no atom of element Y and all the energy released is used in the reactor for generation of electrical power with efficiency `eta`, calculate electrical power generation in the reactor
(i) at time `t` and (ii) in steady state.


0 like 0 dislike
2 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Correct Answer - `[(i)" "eta r[E_(1)+E_(2)(1-e^((t log 2)/T))], (ii)" "eta r(E_(1)+E_(2))]`

0 like 0 dislike
2 views
Talk Doctor Online in Bissoy App
During thhe preparation of `H_(2)S_(2)O_(8)` (per disulphuric acid) `O_(2)` gas also releases at anode as byproduct. When 9.72 of `H_(2)` releases at

Correct Answer - B `(9.72)/(22.4)xx2=(2.35)/(22.4)xx4+(W)/(194)xx2` or `W=43.47g`

2 Answers 1 views
In the thorium decay series that begins with `.^(232)Th,.^(228)Th` alpha-decays into `.^(224)Ra` with a half life of 1.9yr. `.^(224)Ra` alpha-decays i

Correct Answer - 5.9kg,1149kg

2 Answers 1 views
A radioactive nucleus A decay to C after emitting two `alpha` and three `beta` particles. Another nucleus B decays to C by emitting one `alpha` and fi

Correct Answer - (a) `Z_(A)-Z_(B)=4;A_(A)-A_(B)=4` (b) `(9N_(0))/(2)` (c) 6 hr

2 Answers 1 views
A radioactive sample consists of two isotopes one of then decays by `alpha-` emission with a half life of `tau_(1)=405s` and the other one decays by `

Correct Answer - (a) `(1)/(9)` (b) 1215s

2 Answers 1 views
A radioactive element is produced in nuclear reactor at a constant rate R(=numbers of nuclei per second). Its half-life is `T_(1//2)`. How much time,

Correct Answer - `T_(1//2)`,No

2 Answers 1 views
Nuclei of radioactive element `A` are produced at rate `t^(2)` (where `t` is time) at any time `t`. The element `A` has decay constant `lambda`. Let `

Correct Answer - `(2t_(0)-lambdat_(0)^(2))/(lambda_(2))`

2 Answers 1 views
A radioactive nucleus A decays into B with a decay constnat `lambda_(1)`. B is alos radioactive and it decays into C with a decay constant of `lambda_

Correct Answer - (a)`(dN_(2))/(dt)=-lambda_(2)N_(2)+lambda_(1)N_(1)^(0)e^(-lambda_(1)t)` (b) `(A_(2))/(A_(1))=(lambda_(2))/(lambda_(2)-lambda_(1))` (c) `((1)/(lambda_(2)-lambda_(1)))ln((lambda_(2))/(lambda_(1)))`

2 Answers 2 views
Carbon (Z=6) with mass number 11 decays to boron (Z=5).(a) Is it a `beta^+` -decay? (b) the half-life of the decay scheme is 20.3 minutes .How much ti

Correct Answer - `[beta^(+), 64 min]`

2 Answers 1 views
A number `N_(0)` of atoms of a radio active element are placed inside a closed volume. The radioactive decay constant for the nucleus of this element

Correct Answer - `[N_(0)e^(-lambda_(2)t).(lambda_(1)N_(0))/(lambda_(2))(t-e^(-lambda_(2)t))]`

2 Answers 1 views
27^(60)CO decays with half-life of 5.27 years to produce 28^(60) Ni. What is the decay constant for such radioactive disintegration?

Option : a. 0.132 y-1

2 Answers 6 views
X