A chemical process is carricd out in a thermostat maintained at 25^∘ C. The process may be terme

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A chemical process is carricd out in a thermostat maintained...

A chemical process is carricd out in a thermostat maintained at $25^{\circ} \mathrm{C}$. The process may be termed as
(1) isobaric process
(2) isoentropic process
(3) adiabatic process
(4) isothermal process

Key Concepts

Isoentropic Process

An isoentropic process, also known as a reversible adiabatic process, occurs with no change in the entropy of the system. This implies that while the process is adiabatic (with no heat exchange), it is also completely reversible, meaning there is no dissipative loss of energy and the disorder within the system remains constant.

Adiabatic Process

An adiabatic process is defined by the absence of heat exchange between the system and its surroundings. In these processes, any change in the internal energy of the system comes solely from the work done on or by the system. Since there is no heat transfer, temperature can change even though no thermal energy is gained or lost externally.

Isothermal Process

An isothermal process is one in which the temperature of the system remains constant throughout the process. This condition is maintained by balancing any heat exchanged with the surroundings such that the internal energy remains steady if the process is ideal. In many practical scenarios, a thermostat or a heat reservoir is used to ensure that temperature remains uniform despite energy transfers.

Isobaric Process

An isobaric process is characterized by a constant pressure throughout the process. In such a scenario, the system undergoes volume or temperature changes while the pressure remains uniform. This kind of process is common in many engineering applications where pressure regulation is critical, though it does not necessarily imply constant temperature.

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