# Another seemingly very easy question (Energy)

• PolyFX
In summary, the graph below shows potential energy vs. interatomic separation for a diatomic molecule. When the interatomic separation is r0, a line representing the kinetic energy would run from point 1 to point 2, indicating a state where the molecule is unbound and can separate. If the total energy were to be graphed as a function of r, it would likely show a decrease as the interatomic separation increases, reaching a minimum at r0 and then increasing again.
PolyFX

## Homework Statement

The diagram below is a graph of potential energy vs. interatomic separation for a particular diatomic molecule (that is, a molecule consisting of two atoms).

For the energy level shown on the graph, imagine drawing a line whose length represents the kinetic energy when the interatomic separation is r0. This line runs from where to where?

K+U=E?
0.5Ks^2=E

## The Attempt at a Solution

I always have problems analyzing graphs. I got the latter parts of this question correct which involved doing calculations. However, I can't seem to get this one. The only reasonable answer I can come up with is from 1 to 2 since that would make the molecule unbound and allow it to separate (break apart). Any help on this question would be much appreciated.

If you were to draw the total energy on the same graph as a function of r, what would it look like?

Your reasoning is correct. The line would run from point 1 to point 2 on the graph, representing the kinetic energy at the given energy level when the interatomic separation is r0. This would indicate that the molecule is unbound and can break apart at this energy level. This also means that the molecule has enough energy to overcome the attractive forces between the atoms and separate into two individual atoms.

## 1. What is energy?

Energy is the ability to do work or cause change. It exists in many different forms, including kinetic, potential, thermal, and chemical energy.

## 2. How is energy created?

Energy cannot be created or destroyed, according to the law of conservation of energy. It can only be converted from one form to another. For example, the sun's energy is converted into heat and light energy that reaches Earth.

## 3. What are the sources of energy?

The main sources of energy are fossil fuels, such as coal, oil, and natural gas, as well as renewable sources like wind, solar, and hydropower. Nuclear energy is also a source of energy, but it is controversial due to safety concerns.

## 4. How is energy used?

Energy is used in many different ways, such as powering homes and businesses, transportation, and manufacturing. It is also used in the production of goods and services, such as food and consumer products.

## 5. How can we conserve energy?

There are several ways to conserve energy, including using energy-efficient appliances and light bulbs, turning off electronics when not in use, and using public transportation or carpooling. Additionally, reducing overall energy consumption by being mindful of our daily habits can also help conserve energy.

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