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Ali Asadullah
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Why entropy change associated with work is zero?
Entropy change associated with work is a measure of the amount of energy that is transferred between a system and its surroundings during a physical or chemical process. It describes the change in the degree of disorder or randomness of a system as it performs work.
The entropy change associated with work can be calculated using the equation ΔS = q/T, where ΔS is the change in entropy, q is the heat transferred, and T is the temperature in Kelvin.
The relationship between work and entropy change is that work is one way in which energy can be transferred between a system and its surroundings, and this transfer of energy results in a change in entropy. As work is done on a system, the degree of disorder or randomness of the system decreases, leading to a decrease in entropy. Conversely, when work is done by a system, the degree of disorder or randomness increases, resulting in an increase in entropy.
Entropy change associated with work is a fundamental concept in thermodynamics and plays a key role in determining the direction and efficiency of thermodynamic processes. It helps to explain why certain processes are spontaneous, while others are not. In general, processes that result in a decrease in entropy are non-spontaneous, while processes that result in an increase in entropy are spontaneous.
Yes, entropy change associated with work can be negative. This occurs when work is done on a system, causing a decrease in entropy. However, it is important to note that this decrease in entropy is only temporary and is always accompanied by an increase in entropy elsewhere, such as in the surroundings. The overall change in entropy for the entire system must always be positive, in accordance with the second law of thermodynamics.