1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
STatiana [176]
3 years ago
8

An isotope of californium-252 undergoes a spontaneous fission, producing cesium-135, 3 neutrons, and one other isotope. a) Deter

mine the identity of the other isotope produced in the fission, and write out the reaction equation, using full isotopic notation, for example Pm → C022 + Seag + 2n. b) Calculate the amount of mass (in u) lost during this fission. The masses of the three isotopes are: 252.081 626 u (californium), 134.905 978 u (cesium), 113.935 880 u (unknown). Maintain a precision of no less than 7 SF as you work. c) Calculate the energy (in MeV) released by this fission, accurate to 3 SF.
Physics
1 answer:
mojhsa [17]3 years ago
3 0

<u>Answer:</u>

<u>For a:</u> The isotopic symbol of unknown element is _{43}^{114}\textrm{Tc}

<u>For b:</u> The amount of mass lost during this process is 0.2137730 u.

<u>For c:</u> The energy released in the given nuclear reaction is 1.99\times 10^2MeV

<u>Explanation:</u>

  • <u>For a:</u>

In a nuclear reaction, the total mass and total atomic number remains the same.

For the given fission reaction:

^{252}_{98}\textrm{Cf}\rightarrow ^A_Z\textrm{X}+^{135}_{55}\textrm{Cs}+3^1_0\textrm{n}

  • <u>To calculate A:</u>

Total mass on reactant side = total mass on product side

252 = A + 135 + 3

A = 114

  • <u>To calculate Z:</u>

Total atomic number on reactant side = total atomic number on product side

98 = Z + 55 + 0

Z = 43

Hence, the isotopic symbol of unknown element is _{43}^{114}\textrm{Tc}

  • <u>For b:</u>

We are given:

Mass of _{98}^{252}\textrm{Cf} = 252.081626 u

Mass of _{0}^{1}\textrm{n} = 1.008665 u

Mass of _{55}^{135}\textrm{Cs} = 134.905978 u

Mass of _{43}^{114}\textrm{Tc} = 113.935880 u

To calculate the mass defect, we use the equation:

\Delta m=\text{Mass of reactants}-\text{Mass of products}

Putting values in above equation, we get:

\Delta m=(m_{Cf})-(m_{Cs}+m_{Tc}+3m_{n})\\\\\Delta m=(252.081626)-(134.905978+113.935880+3(1.008665))=0.2137730u

Hence, the amount of mass lost during this process is 0.2137730 u.

  • <u>For c:</u>

To calculate the energy released, we use the equation:

E=\Delta mc^2\\E=(0.2137730u)\times c^2

E=(0.2137730u)\times (931.5MeV) (Conversion factor:  1u=931.5MeV/c^2  )

E=1.99\times 10^2MeV

Hence, the energy released in the given nuclear reaction is 1.99\times 10^2MeV

You might be interested in
Two concentric current loops lie in the same plane. The smaller loop has a radius of 3.4 cmcm and a current of 12 AA. The bigger
Free_Kalibri [48]

Answer:

Explanation:

Given that,

Current in loops are

i1 = 12A

i2 = 20A

The loops are 3.4cm apart

The magnetic field at the center is found to be zero, so when want to find the radius of bigger loop

Magnetic Field is given as

B= μoi/2πr

Where,

μo is a constant = 4π×10^-7 Tm/A

r is the distance between the two wires

i is the current in the wires

B is the magnetic field

NOTE

Field due to large loop should be equal to the smaller loop.

B1 = B2

μo•i1 / 2π•r1 = μo•i2 / 2π•r2

Then, μo, 2π cancels out, so we have

i1 / r1 = i2 / r2

Make r2 subject of formula

i1•r2 = i2•r1

r2 = i2•r1 / i2

r2 = 20×3.4/12

r2 = 5.67cm

The radius of the bigger loop is 5.67cm.

4 0
3 years ago
BRAINLIEST WELL BE AWARDED.<br>what is an alloy?​
DedPeter [7]

Answer:

Alloy, metallic substance composed of two or more elements, as either a compound or a solution. The components of alloys are ordinarily themselves metals, though carbon, a nonmetal, is an essential constituent of steel.

Explanation:

Alloys are usually produced by melting the mixture of ingredients. The value of alloys was discovered in very ancient times; brass (copper and zinc) and bronze (copper and tin) were especially important. Today, the most important are the alloy steels, broadly defined as steels containing significant amounts of elements other than iron and carbon. The principal alloying elements for steel are chromium, nickel, manganese, molybdenum, silicon, tungsten, vanadium, and boron have a wide range of special properties, such as hardness, toughness, corrosion resistance, magnetizability, and ductility. Nonferrous alloys, mainly copper–nickel, bronze, and aluminum alloys, are much used in coinage. The distinction between an alloying metal and an impurity is sometimes subtle; in aluminum, for example, silicon may be considered an impurity or a valuable component, depending on the application, because silicon adds strength though it reduces corrosion resistance.

8 0
2 years ago
What is kirchoff s law???
kolbaska11 [484]
There are two laws named for Kirchhoff.  The both concern electrical circuits.
Here they are in my own words:

1).  The sum of the voltage drops around any closed loop in a circuit is zero.

2).  The sum of the currents at any single point in a circuit is zero.
8 0
3 years ago
Read 2 more answers
A proton and an electron are fixed in space with a separation of 859 nm. Calculate the electric potential at the midpoint betwee
makkiz [27]

Answer:

The electric potential at the midpoint between the two particles is 3.349 X 10⁻³ Volts

Explanation:

Electric potential is given as;

V = E*r

where;

E is the electric field strength, = kq/r²

V = ( kq/r²)*r

V = kq/r

k is coulomb's constant = 8.99 X 10⁹ Nm²/C²

q is the charge of the particles = 1.6 X 10⁻¹⁹ C

r is the distance between the particles = 859 nm

At midpoint, the distance = r/2 = 859nm/2 = 429.5 nm

V = (8.99 X 10⁹  * 1.6 X 10⁻¹⁹)/ (429.5 X 10⁻⁹)

V = 3.349 X 10⁻³ Volts

Therefore, the electric potential at the midpoint between the two particles is 3.349 X 10⁻³ Volts

3 0
3 years ago
If the Sun were the size of a small exercise ball (about 0.5 meters (m) in
suter [353]

Answer:

the size of a pea

Explanation:

4 0
2 years ago
Other questions:
  • How do objects become negatively charged using the contact method
    7·1 answer
  • The movement of energy from the sun toward the earth is an example of ?
    15·2 answers
  • An area where the particles in a medium are spaced close together is called a _____.
    9·2 answers
  • Which of the following has the largest momentum?
    9·1 answer
  • A steady beam of alpha particles (q = + 2e) traveling with constant kinetic energy 14 MeV carries a current of 0.20 µA.
    8·1 answer
  • The free body diagram represents Silly Sally hanging from a trapeze bar. Sally weighs 660 Newtons. What is the force in each of
    12·1 answer
  • Which statement is true if the mass of object A is twice that of object B?
    11·1 answer
  • What do you make when you dissolve sugar in water?
    10·1 answer
  • What are Radio Waves?
    11·2 answers
  • If an object accelerates from rest, with a constant acceleration of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!