Differentiate between the following (with examples) 1. Open and closed system. 2. Adiabatic and isothermal process. 3. State function and path function.

1. Open system: Open system is a system which can exchange both matter as well as energy e.g. a cup of tea. Closed system: Closed system is a system which can exchange energy but not matter e.g. tea placed in closed kettle. 2. Adiabatic process: Adiabatic process is a process in which no exchange of heat takes place with the surrounding e.g. carrying out reaction in a isolated system. The conductor should have non-conducting walls. Isothermal process: Isothermal process is a process in which no change in temperature takes place e.g. thermostat maintains constant temperature by exchanging heat with the surroundings. 3. State function: It depends upon initial and final state of the system and not on path e.g. (internal energy change) Path function: It depends upon path e.g. work.

Differentiate between the following (with examples) 1. Open and c…

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Question

Differentiate between the following (with examples)

Open and closed system.
Adiabatic and isothermal process.
State function and path function.

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Answer

Open system: Open system is a system which can exchange both matter as well as energy e.g. a cup of tea.

Closed system: Closed system is a system which can exchange energy but not matter e.g. tea placed in closed kettle.

Adiabatic process: Adiabatic process is a process in which no exchange of heat takes place with the surrounding e.g. carrying out reaction in a isolated system. The conductor should have non-conducting walls.

Isothermal process: Isothermal process is a process in which no change in temperature takes place e.g. thermostat maintains constant temperature by exchanging heat with the surroundings.

State function: It depends upon initial and final state of the system and not on path e.g. $\Delta\text{U}$ (internal energy change)

Path function: It depends upon path e.g. work.

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