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cordovatierra16
17.06.2021 •
Physics
Calculations
Complete the calculations for each nuclear reaction listed below.
Use these resources to better understand the activity at hand and to help in your tasks:
Conversions:
1MeV = 1.6 x 10-13 J
Energy use per person per year in the United States = 3.5 x 1011 Joules
(estimated, varies by source, August 2009)
Approximate population of USA: 310,000,000
Question 1
Deuterium-Tritium Fusion Reaction
Given: energy released = 17.59 MeV per deuterium/tritium reaction pair (mass = 5 amu)
Part A
List the balanced nuclear reaction.
Question 1
Deuterium-Tritium Fusion Reaction
Given: energy released = 17.59 MeV per deuterium/tritium reaction pair (mass = 5 amu)
Part A
List the balanced nuclear reaction.
Question 1
Deuterium-Tritium Fusion Reaction
Given: energy released = 17.59 MeV per deuterium/tritium reaction pair (mass = 5 amu)
Part A
List the balanced nuclear reaction.
Part B
Determine the energy released per kilogram of fuel used.
Given MeV per reaction, calculate energy in joules per kilogram of reactants.
Consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).
Part C
Determine the mass of fuel required for the expected energy consumption in the United States for the next 10 years.
Energy use per person per year in the United States = 3.5 × 1011 joules.
Base your calculations on a current population of 310,000,000.
Question 2
Uranium-235 Fission
Given: energy released = about 200 MeV per individual reaction (mass = 235 amu)
Part A
Find the balanced nuclear reaction.
Part B
Determine the energy released per kilogram of fuel used.
Given MeV per reaction, calculate energy in joules per kilogram of reactants.
Consider 1 mole of uranium-235 to be a mole of “reactions” (molar mass = 235 grams).
Part C
Determine the mass of fuel required for the expected energy consumption in the United States for the next 10 years:
Provide the energy use per person per year in the United States = 3.5 × 1011 joules.
Base your calculations on a current population of 310,000,000.
Question 3
Plutonium-235
Given: energy released = about 200 MeV per individual reaction (mass = 239 amu)
Part A
List the balanced nuclear reaction.
Part B
Determine the energy released per kilogram of fuel used.
Given MeV per reaction, calculate energy in joules per kilogram of reactants.
Consider 1 mole of plutonium-239 to be a mole of “reactions” (molar mass = 239 grams).
Part C
Determine the mass of fuel required for the expected energy consumption in the United States for the next 10 years.
Energy use per person per year in the United States = 3.5 × 1011 joules.
Base your calculations on a current population of 310,000,000.
Solved
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Ответ:
1- Since the resistors are in series, therefore, the total resistance is the summation of the two resistors.
Therefore:
Rtotal = R1 + R2 = 3.11 + 6.15 = 9.26 ohm
2- Since the two resistors are in series, therefore, the current flowing in both is the same. We will use ohm's law to get the current as follows:
V = I*R
V is the voltage of the battery = 24 v
I is the current we want to get
R is the total resistance = 9.26 ohm
Therefore:
24 = 9.26*I
I = 24 / 9.26
I = 2.59 ampere
Part (b):
To get the voltage across the second resistor, we will again use Ohm's law as follows:
V = I*R
V is the voltage we want to get
I is the current in the second resistor = 2.59 ampere
R is the value of the second resistor = 6.15 ohm
Therefore:
V = I*R
V = 2.59 * 6.15
V = 15.9285 volts
Hope this helps :)