Isolated System in Thermodynamics

An isolated system is a thermodynamic system that does not exchange heat, work, or mass with its surroundings. An isolated system is considered to be a closed system that does not allow any transfer of energy or matter across its boundary. The thermos flask is a perfect example of an isolated system.

Thermos Flask as an Isolated System

The thermos flask is a well-insulated container designed to keep hot drinks hot and cold drinks cold for an extended period. The flask consists of two containers, one inside the other, separated by a vacuum. This vacuum provides an excellent thermal insulation barrier between the inside and outside of the flask, reducing heat transfer by conduction, convection, and radiation.

The hot coffee stored in the thermos flask is an example of an isolated system because it does not exchange heat, work, or mass with its surroundings. The heat is trapped inside the flask, and no heat transfer occurs between the coffee and the environment. Therefore, the flask and its content are isolated from the surroundings.

Conclusion

In conclusion, the hot coffee stored in a well-insulated thermos flask is an example of an isolated system in thermodynamics. The flask is designed to minimize the exchange of heat between the contents and the environment, creating a perfect isolated system. The thermos flask is an excellent device for keeping hot and cold drinks at their desired temperature for an extended period, making it an essential tool for people who are always on the go.