The fission properties of \$^{239}_{94}Pu\$ are very similar to those of \$^{235}_{92}U\$. The average energy released per fission is 180 MeV. How much energy, in MeV, is released if all the atoms in 1 kg of pure \$^{239}_{94}Pu\$ undergo fission?

Number of atoms in 1 kg of pure Pu=\$\dfrac{6.023\times 10^{23}}{239}\times 1000=2.52\times 10^{24}\$As average energy released in fission is \$180 MeV\$, the total energy released is\$\Rightarrow2.52\times 10^{24}\times 180MeV\$\$\Rightarrow4.53\times 10^{26}MeV\$.

Why high temperature is required for Nuclear fusion ?

Fusion reaction takes place at temperatures around \$10^7k\$. It requires this high temperature so that nucleus start moving at rapidly speed, which in turn increases their kinetic, so that they overcome the repulsion between them and can come together.

The necessary condition for nuclear fusion is

High temperature - The high temperature gives the hydrogen atoms enough energy to overcome the electrical repulsion between the protons.High pressure - Pressure squeezes the hydrogen atoms together. They must be within \$1\times10^{-15}\$ meters of each other to fuse.

The equation, \$ 4_1H^1 \rightarrow [ _2He^4]^{2+} + 2e^- ; + 26 MeV \$ represents :

According to the question, hydrogen is converted into helium and two position and energy. Here, this reaction corresponding fusion.

In nuclear reaction \$_{4}Be^{9}+_{2}He^{4} \rightarrow _{6}c^{12}\$+X, X will be :

\$_{4}Be^{9} + _{2}He^{4} \rightarrow _{6}C^{12} + X\$No. of protons are already balanced with \$C\$.\$\therefore\$ \$X\$ carries no charge.and \$ 9+4 > 12\$ by \$1\$ unit mass.\$\therefore\$ \$X\$ carries one unit mass.It's a neutron.

Areas where Jews lived were known as ghettos. Ghettos were often enclosed districts that isolated Jews by separating Jewish communities from the non-Jewish population and from other Jewish communities. Germans established at least 1,143 ghettos in the occupied eastern territories.

The correct equation of nuclear fusion reaction is

In nuclear fusion reactions, the heavy isotopes of Hydrogen take part like deuterium \$_1H^2\$ and tritium \$_1H^3\$ as they have extra neutron. Therefore, the reaction C is correct out of the given options.

The example of nuclear fusion is :

A helium nucleus is formed when \$4\$ hydrogen nuclei or protons come together. Thus, the example of nuclear fusion is formation of helium from hydrogen

What is the source of energy in sun and stars ?

Nuclear fusion takes place in the sun and other stars.

The binding energies of the atoms of elements \$P\$ and \$Q\$ are \$E_{p}\$ and \$E_{Q}\$, respectively. Three atoms of element \$Q\$ fuse to form one atom of element \$P\$. In this process, the energy released is \$e\$. The correct relation between \$E_{P}, E_{Q}\$ and \$e\$ will be

Binding energy of \$3\$ \$Q\$ elements will be \$3E_Q\$So, by energy conservation, binding energy of three \$P\$ elements is equal to the sum of \$Q\$ element's binding energy and the released energy.So, equation is \$E_p + e = 3E_Q \$\$E_p = 3E_Q - e \$

Nuclear Fusion (Phy) | Definition, Examples, Diagrams

definition

Thermonuclear fusion

To generate useful amount of energy, nuclear fusion must occur in bulk matter. What is needed is to raise the temperature of the material until the particles have enough energy due to their thermal motions alone to penetrate the coulomb barrier. This process is called thermonuclear fusion.Thus, for thermonuclear fusion to take place, extreme conditions of temperature and pressure are required, which are available only in the interiors of stars including sun.

definition

Energy generation in stars

Nuclear fusion is the principal source of energy in stars and fusion can happen if each nucleus has sufficient kinetic energy to enable them to overcome their mutual repulsion, be captured by the strong nuclear force and stick together. In star formation,the kinetic energy to do this, comes from the conversion of gravitational energy into thermal energy by the Kelvin Helmholtz contraction. In the case of stars like the sun, fusion can occur when the temperature of the contracting cloud reaches about

8 \times 1 0^{6} K

. It is fusion of hydrogen nuclei by thermonuclear fusion reactions with a release of binding energy that is the primary source of energy generation in stars.

definition

Energy generation in sun

The fusion reaction in the sun is a multi-step process in which hydrogen is burned into helium, hydrogen being the fuel and helium the ashes. The proton-proton (p, p) cycle by which this occurs is represented by the following sets of reactions:

$_{1}^{1} H +_{1}^{1} H \to_{1}^{2} H + e^{+} + ν + 0.42 M e V$
$e^{+} + e^{-} \to γ + γ + 1.02 M e V$
$_{1}^{1} H +_{1}^{2} H \to_{2}^{3} H e + γ + 5.49 M e V$
$_{2}^{3} H +_{2}^{3} H \to_{2}^{4} H e +_{1}^{1} H +_{1}^{1} H + 12.86 M e V$

For the fourth reaction to occur, the first three reactions must occur
twice, in which case two light helium nuclei unite to form ordinary helium
or nucleus. If we consider the combination 2(1) + 2(3) + 2(3) +(4), the net
effect is

4_{1}^{1} H + 2 e^{-} \to_{2}^{4} H e + 2 ν + 6 γ + 26.7 M e V

example

Examples of Nuclear Fusion Reactions

Nuclear fusion is a process when two or more nuclei combine to form a large nuclei and release some energy. These are the examples of Nuclear Fusion Reaction:

1.

_{6} C^{13} +_{1} H^{1} \to_{7} C^{14} + 4.3 M e V

_{6} C^{12} +_{1} H^{1} \to_{7} C^{13} + 2 M e V

_{7} C^{14} +_{1} H^{1} \to_{8} O^{15} + 7.3 M e V

Nuclear Fusion (Phy)

definition

Thermonuclear fusion

definition

Energy generation in stars

definition

Energy generation in sun

example

Examples of Nuclear Fusion Reactions

REVISE WITH CONCEPTS

Controlled Thermonuclear Fusion

Nuclear Holocaust

Quick Summary With Stories

Nuclear fission reaction

Nuclear fusion reactions and its examples

Thermonuclear Fusion

The fission properties of $_{94}^{239} P u$ are very similar to those of $_{92}^{235} U$ . The average energy released per fission is 180 MeV. How much energy, in MeV, is released if all the atoms in 1 kg of pure $_{94}^{239} P u$ undergo fission?

Why high temperature is required for Nuclear fusion ?

The necessary condition for nuclear fusion is

The equation, $4_{1} H^{1} \to [_{2} H e^{4}]^{2 +} + 2 e^{-}; + 26 M e V$ represents :

In nuclear reaction $_{4} B e^{9} +_{2} H e^{4} \to_{6} c^{12}$ +X, X will be :

What were ghettos?

The correct equation of nuclear fusion reaction is

The example of nuclear fusion is :

What is the source of energy in sun and stars ?

The binding energies of the atoms of elements $P$ and $Q$ are $E_{p}$ and $E_{Q}$ , respectively. Three atoms of element $Q$ fuse to form one atom of element $P$ . In this process, the energy released is $e$ . The correct relation between $E_{P}, E_{Q}$ and $e$ will be

definition

Thermonuclear fusion

definition

Energy generation in stars

definition

Energy generation in sun

example

Examples of Nuclear Fusion Reactions

REVISE WITH CONCEPTS

Controlled Thermonuclear Fusion

Nuclear Holocaust

Quick Summary With Stories

Nuclear fission reaction

Nuclear fusion reactions and its examples

Thermonuclear Fusion

The fission properties of 94239​Pu are very similar to those of 92235​U. The average energy released per fission is 180 MeV. How much energy, in MeV, is released if all the atoms in 1 kg of pure 94239​Pu undergo fission?

Why high temperature is required for Nuclear fusion ?

The necessary condition for nuclear fusion is

The equation, 41​H1→[2​He4]2++2e−;+26MeV represents :

In nuclear reaction 4​Be9+2​He4→6​c12+X, X will be :

What were ghettos?

The correct equation of nuclear fusion reaction is

The example of nuclear fusion is :

What is the source of energy in sun and stars ?

The binding energies of the atoms of elements P and Q are Ep​ and EQ​, respectively. Three atoms of element Q fuse to form one atom of element P. In this process, the energy released is e. The correct relation between EP​,EQ​ and e will be

The fission properties of $_{94}^{239} P u$ are very similar to those of $_{92}^{235} U$ . The average energy released per fission is 180 MeV. How much energy, in MeV, is released if all the atoms in 1 kg of pure $_{94}^{239} P u$ undergo fission?

The equation, $4_{1} H^{1} \to [_{2} H e^{4}]^{2 +} + 2 e^{-}; + 26 M e V$ represents :

In nuclear reaction $_{4} B e^{9} +_{2} H e^{4} \to_{6} c^{12}$ +X, X will be :

The binding energies of the atoms of elements $P$ and $Q$ are $E_{p}$ and $E_{Q}$ , respectively. Three atoms of element $Q$ fuse to form one atom of element $P$ . In this process, the energy released is $e$ . The correct relation between $E_{P}, E_{Q}$ and $e$ will be