3 min read•january 8, 2023
Saarah Hasan
Daniella Garcia-Loos
Saarah Hasan
Daniella Garcia-Loos
In section 7.3, we went over Einstein’s mass-energy equivalence equation, E=(Δm)c^2.
Mass-energy equivalence is the concept that mass and energy are interchangeable and can be converted into each other. It is described by the famous equation E=mc^2, where E is energy, m is mass, and c is the speed of light.
Here are some key points about mass-energy equivalence:
In 7.4, we’ll briefly go over disintegration energy.
For those who have taken chemistry, you probably already know that a general nuclear reaction is written as
A+B → C+D+Q
where Q denotes the disintegration energy. If Q is positive, the reaction is exothermic (it releases energy/heat ) and can occur spontaneously. If Q is negative, the reaction is endothermic( gains energy/heat) and can’t occur spontaneously. Q is calculated by:
Q=[(mA+mB)−(mC+mD)]c^2=(Δm)c^2
Disintegration energy is the energy required to break down a nucleus into its constituent protons and neutrons. It is a measure of the strength of the forces that hold the nucleus together.
Here are some key points about disintegration energy:
Exothermic and endothermic are terms used to describe the flow of heat in chemical reactions.
Here are some key points about exothermic and endothermic reactions:
Binding energy
: Binding energy refers to the amount of energy required to break apart or separate particles within an atomic nucleus or between atoms in a molecule. It represents the strength of attraction holding particles together.Disintegration Energy
: Disintegration energy refers to the amount of energy released when an atomic nucleus undergoes radioactive decay and transforms into a different element or isotope.Endothermic reaction
: An endothermic reaction is a chemical reaction that absorbs heat from its surroundings. In other words, it requires an input of energy to occur.Exothermic Reaction
: An exothermic reaction is a chemical reaction that releases heat or energy to its surroundings during its progress. It usually feels warm or hot to touch.Speed of Light
: The speed of light is a fundamental constant in physics denoted by "c." It represents how fast light travels in a vacuum, which is approximately 299,792 kilometers per second or about 186,282 miles per second.3 min read•january 8, 2023
Saarah Hasan
Daniella Garcia-Loos
Saarah Hasan
Daniella Garcia-Loos
In section 7.3, we went over Einstein’s mass-energy equivalence equation, E=(Δm)c^2.
Mass-energy equivalence is the concept that mass and energy are interchangeable and can be converted into each other. It is described by the famous equation E=mc^2, where E is energy, m is mass, and c is the speed of light.
Here are some key points about mass-energy equivalence:
In 7.4, we’ll briefly go over disintegration energy.
For those who have taken chemistry, you probably already know that a general nuclear reaction is written as
A+B → C+D+Q
where Q denotes the disintegration energy. If Q is positive, the reaction is exothermic (it releases energy/heat ) and can occur spontaneously. If Q is negative, the reaction is endothermic( gains energy/heat) and can’t occur spontaneously. Q is calculated by:
Q=[(mA+mB)−(mC+mD)]c^2=(Δm)c^2
Disintegration energy is the energy required to break down a nucleus into its constituent protons and neutrons. It is a measure of the strength of the forces that hold the nucleus together.
Here are some key points about disintegration energy:
Exothermic and endothermic are terms used to describe the flow of heat in chemical reactions.
Here are some key points about exothermic and endothermic reactions:
Binding energy
: Binding energy refers to the amount of energy required to break apart or separate particles within an atomic nucleus or between atoms in a molecule. It represents the strength of attraction holding particles together.Disintegration Energy
: Disintegration energy refers to the amount of energy released when an atomic nucleus undergoes radioactive decay and transforms into a different element or isotope.Endothermic reaction
: An endothermic reaction is a chemical reaction that absorbs heat from its surroundings. In other words, it requires an input of energy to occur.Exothermic Reaction
: An exothermic reaction is a chemical reaction that releases heat or energy to its surroundings during its progress. It usually feels warm or hot to touch.Speed of Light
: The speed of light is a fundamental constant in physics denoted by "c." It represents how fast light travels in a vacuum, which is approximately 299,792 kilometers per second or about 186,282 miles per second.© 2024 Fiveable Inc. All rights reserved.
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