Heat and Temperature Difference
While studying Thermodynamics, we have to come across some similar words, among which are Heat and Temperature. Through Difference Between Heat and Temperature In Article we will try to understand the difference between these two.
Difference Between Heat and Temperature
In this article Difference Between Heat and Temperature, we will not only talk about what is the difference between Heat and Temperature. Rather, we will try to understand the heat and temperature as well.
So in this article we will know that:-
- What is Heat?
- What Is Temperature?
- Difference between Heat and Temperature.
What Is Heat?
Whenever we hear that "What is Heat?" So say the first word or the first picture that comes to our mind is 'fire'. Actually this is not happening only with you but it is happening with many of us. But what is the reason behind it?
Heat
Actually the reason behind this is the history of Heat. It took a long time to understand the real heat. Sometimes it was considered as a liquid, and because of that the word heat capacity came, sometimes heat was understood to mean only fire. But as science progressed, the understanding also developed that heat is none of these. Then what is heat?
If we understand heat in simple words, then it comes to know that heat is a form of energy, which we call Kinetic Energy or Kinetic Energy.
Now let us try to understand it a little deeper that how did Heat, Kinetic Energy actually happen? Generally we say that if an object is hot then it is heated. Or if an object is to be heated, then if it is placed on the fire, then it becomes hot.But why does that object get hot after placing it on fire? After all, what changes inside that object due to which it starts feeling hot to us? So let's understand this. You and we know that every object in this world is made up of small molecules.
A bond is made between these molecules. If that bond is too strong, the object will remain in the solid state. The same thing will remain on the liquid and gas state respectively when we become strong.
Now when we heat any object, due to this energy goes inside those molecules which make up that object. The change that occurs due to the loss of energy is that molecules start moving from low energy state to high energy state, and due to this their kinetic energy increases.
In this way, the total molecular energy of molecules present inside any object is called Heat.
Under Total Molecular Energy, all types of energy of the molecule comes. It includes Kinetic Energy, Potential Energy, Vibrational Energy, Bond Energy etc. of Molecules.
If we think that if we take out all the heat from any object, then nothing will be left in it, but it does not happen. No matter how much heat we take out, heat remains in some amount. Now let me make one thing more clear here that heat is a form of energy, but it is not the only medium of heat by which the energy of the system can be used.
If two systems are in contact and there is a temperature difference between them, then heat transfer will also occur. The transfer of heat will be from high temperature to low temperature. As the heat leaves the high temperature object, its temperature will also decrease, and the other will increase, and when the temperature of both the objects becomes equal then this heat transfer will stop.
Heat energy also depends on the size or mass of the system. If there is 1 glass of water whose temperature is 500 C and on the other side there is 1 bucket of water whose temperature is also the same then the heat energy will be more with the bucket of water. Because there are more molecules of water in the bucket which can hold more heat energy.
It's just like every child can have a chocolate with them. Now there are 10 children in one class and 20 in another class, so it is natural that there will be more chocolates in the second class because there are more children.
What Is Temperature.
Temperature and temperature are very close, but still both are different. We have learned above that the temperature of anything rises on giving heat, but this is not always correct. As you heat ice to 0C, its temperature will not increase, but it will melt. Then if you measure the temperature of that water, it will remain 0C.
So the question arises that then is the above information wrong? But the truth is that both of these things are true. Apart from this, now you should also know one third thing.
You know that in addition to temperature, pressure and volume are also very important in science. Pressure means pressure coming from above.
You would know that there is pressure from the Atmosphere on all of us. Obviously this will happen on the system as well. This pressure can be increased or decreased. Now if the pressure above a system is increased, then more heat will have to be given than before to increase the temperature of the system by 10C. The more this pressure increases, the more the need for heat will increase.
Similar is the case with the volume as well. If a gas is heated by placing it in a container with a fixed wall, then it will take energy to raise its temperature, because the entire energy is being spent only in raising the temperature. The same if the gas is kept in such a container where it can be expanded, then it will require more energy there to raise the same temperature.
so these two examples It is clear from this that temperature is related to heat but at the same time it is also related to pressure and volume.
So now the main question is that when we measure the temperature of any system, what does it actually tell. So the temperature tells the average kinetic energy of molecules of any system. It neither tells their Potential Energy nor Vibrational Energy.
Difference Between Heat And Temperature.
Heat depends on mass whereas temperature does not depend on mass.
For Example, if you take out 1 glass of hot water from a bucket of hot water, then the temperature of the water of both those vessels will remain the same at that time, but the heat energy will be more in the water of that bucket, and less in the glass of water.
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