404 - Adiabatic process.

Compression and expansion of an adiabatically isolated gas is accompanied by its heating and cooling.

An adiabatic process is one in which no heat is gained or lost by the system. An adiabatic process may be accomplished by thermal insulation or by making rapid changes in volume so that there is no time for heat to be exchanged. The first law of thermodynamics with Q=0 shows that all the change in internal energy is in the form of work done DU = -A. When a gas expands adiabatically it does positive work. The internal energy drops and the temperature drops too. On the contrary, when gas is compressed it does the negative work and the temperature rises. Temperature is the measure of kinetic energy of chaotic motion of the molecules. Higher temperatures correspond to more intense motion of the gas molecules. On a microscopic level it means that when the piston compresses a gas, the speed at which the molecule will be reflected from the piston will be greater than its initial speed. Therefore after reflection from the piston the molecule of gas will receive an additional energy which will be redistributed with time between all molecules of gas due to their mutual collisions.

[adityasahu]

Brilliant man Q=0 so if work is done by piston then enerfy will be stored in molecules and their internal energy will be used to do work on piston so they turn blue indicating low energy of molecules

[Anandkumar-qpzc]

nice video since Q=0. so decrease in internal energy of gas will use to work done by gas. by first law of thermodynamics since Q is equal to zero so W=-∆U. it means that gas has some internal energy initially if internal energy will go to decrease so decrease in internal energy will use to work done by the gas on the piston of Chamber. this is the process of expansion of gas and Piston going upward. similarly if external work done is applied on the piston of Chamber then gas become compressed it means it means work done is applied by the external agent so by sign convention work done is negative and this work done will increase internal energy ∆U. this is the process of compression of gas in the process Piston is going downward

[jonotwist]

awww yissss, gimme that good stuff. Gradient scaling between colors to show differences of energy potential.... awww yeah.

[aanchal]

Does this video really have no sound or is there something wrong with my phone?

[ssjprof.]

Brilliant. I want take this video for my experiment trailer.

[omkartripathy]

what is the difference between adiabatic and isentropic .

[chanakyasinha]

Diesel engines, uses this type of compression.... Temperature is measure of kinetic energy of chaotic motion of molecules 😍😍