Question

What is the change in entropy of 0.130 kg of helium gas at the normal boiling point of helium when it all condenses isothermally to 1.00 l of liquid helium?

Answer 1

At helium's typical boiling point, the change in entropy of the gas is -644J/K.

What is Entropy?

The measurement of disorder or randomness is called entropy. This unpredictability might apply to the entire cosmos, a straightforward chemical event, or even something as basic as the heat exchange and heat transport. The lack of uniformity or irregularity in a thermodynamic system is referred to as a disorder. Entropy is represented by the letter "S," and it is a broad attribute since the amount of entropy or the rate at which it changes depends on the components of a thermodynamic system. Entropy is an intriguing idea since it contradicts the notion that all heat is transferred. By doing so, the second law of thermodynamics is redefined. Entropy and spontaneity are related, meaning that the more disorder or entropy a thermodynamic process has, the more spontaneity it exhibits.

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