All laws of thermodynamics
All laws of thermodynamics
Laws of Thermodynamics: Zeroth Law: The Zeroth Law is the basis for the measurement of temperature. It states that “two bodies which are in thermal equilibrium with a third body are in thermal equilibrium with each other.”
Ie, if there are 3 bodies A,B,C.
If A and B are in thermal equilibrium with C separately (A,C are in thermal equilibrium and B,C are in thermal equilibrium.) ,then of course B,C will be in thermal equilibrium.
First Law: The first law of thermodynamics which is also known as the conservation of energy principle states that energy can neither be created nor destroyed, but it can be changed from one form to another.
Second Law: The second law of thermodynamics states that Energy in the form of heat only flows from regions of higher temperature to that of lower temperature. Many individuals take this statement lightly and for granted, but it has an extensive impact and consequence. This is why it costs money to run an air conditioner.
Third Law: The Third Law states, “The entropy of a perfect crystal is zero when the temperature of the crystal is equal to absolute zero (0 K).” Entropy is sometimes called “waste energy,” i.e., energy that is unable to do work, and since there is no heat energy whatsoever at absolute zero, there can be no waste energy.
• For an information read below.
What is Enthalpy? Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy equals to the total content of heat of a system, equivalent to the system’s internal energy plus the product of volume and pressure.
Mathematically, the enthalpy, H, equals to the sum of the internal energy, E, and the product of the pressure, P, and volume, V, of the system.
H = E + PV
What is Entropy? Entropy is a thermodynamic quantity whose value depends on the physical state or condition of a system. In other words, it is a thermodynamic function used to measure the randomness or disorder of a system. For example, the entropy of a solid, where the particles are not free to move, is less than the entropy of a gas, where the particles will fill the container.
Hope you understand. If you have any other doubt,put a new question.
The Zeroth Law is the basis for the measurement of temperature. It states that “two bodies which are in thermal equilibrium with a third body are in thermal equilibrium with each other.”
Ie, if there are 3 bodies A,B,C.
If A and B are in thermal equilibrium with C separately (A,C are in thermal equilibrium and B,C are in thermal equilibrium.) ,then of course B,C will be in thermal equilibrium.
The first law of thermodynamics which is also known as the conservation of energy principle states that energy can neither be created nor destroyed, but it can be changed from one form to another.
Second Law:The second law of thermodynamics states that Energy in the form of heat only flows from regions of higher temperature to that of lower temperature. Many individuals take this statement lightly and for granted, but it has an extensive impact and consequence. This is why it costs money to run an air conditioner.
Third Law:The Third Law states, “The entropy of a perfect crystal is zero when the temperature of the crystal is equal to absolute zero (0 K).” Entropy is sometimes called “waste energy,” i.e., energy that is unable to do work, and since there is no heat energy whatsoever at absolute zero, there can be no waste energy.
• For an information read below.
Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy equals to the total content of heat of a system, equivalent to the system’s internal energy plus the product of volume and pressure.
Mathematically, the enthalpy, H, equals to the sum of the internal energy, E, and the product of the pressure, P, and volume, V, of the system.
H = E + PV
What is Entropy?Entropy is a thermodynamic quantity whose value depends on the physical state or condition of a system. In other words, it is a thermodynamic function used to measure the randomness or disorder of a system. For example, the entropy of a solid, where the particles are not free to move, is less than the entropy of a gas, where the particles will fill the container.
Hope you understand. If you have any other doubt,put a new question.
