In thermodynamics, the work done by the system is considered ………and the work done on the system

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In thermodynamics, the work done by the system is considered...

In thermodynamics, the work done by the system is considered $\ldots \ldots \ldots$ and the work done on the system is Considered $\ldots \ldots \ldots .$
(A) Positive, zero
(B) negative, Positive
(C) zero, negative
(D) Positive, negative

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Key Concepts

Sign Conventions in Thermodynamics

The sign convention in thermodynamics is crucial for distinguishing between work done by the system and work done on the system. Typically, work done by the system (such as during expansion) is assigned a positive value, while work done on the system (such as during compression) is assigned a negative value, affecting how energy changes within the system are computed.

System and Surroundings

This concept involves the distinction between the system, which is the part of the universe being analyzed, and its surroundings, which interact with the system. Understanding this distinction is essential when applying energy conservation principles and determining whether energy is leaving or entering the system in the form of work.

Work in Thermodynamics

This concept refers to the energy transfer that occurs when a system undergoes a process and exerts force over a distance. In thermodynamics, work is a mode of energy transfer associated with volume changes or mechanical actions, and it plays a key role in energy balance equations.

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