In a thermodynamic cycle, the net work done is equal to which of the following?

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Question: In a thermodynamic cycle, the net work done is equal to which of the following?

Options:

Correct Answer: Net heat added to the system

Solution:

In a thermodynamic cycle, the net work done is equal to the net heat added to the system, according to the first law of thermodynamics.

In a thermodynamic cycle, the net work done is equal to which of the following?

In a thermodynamic cycle, the net work done is equal to which of the following?

Step 1: Understand that a thermodynamic cycle is a series of processes that return a system to its initial state.
Step 2: Recall the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
Step 3: In a complete cycle, the change in internal energy is zero because the system returns to its initial state.
Step 4: Since the change in internal energy is zero, the heat added to the system must equal the work done by the system.
Step 5: Therefore, the net work done in a thermodynamic cycle is equal to the net heat added to the system.

First Law of Thermodynamics – The principle stating that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
Thermodynamic Cycle – A series of processes that return a system to its initial state, allowing for the analysis of work and heat transfer.
Net Work Done – The total work output or input during a complete cycle, which can be calculated from the area enclosed by the cycle on a PV diagram.