What is the Formula for Calculating Entropy Change in a Phase Transition?

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To calculate the entropy change during the phase transition of 5.00 g of water at 100°C to steam at the same temperature, the correct formula is ΔS = ΔQ / T, where ΔQ represents the heat absorbed or released and T is the absolute temperature in Kelvin. The absolute temperature for 100°C is 373.15 K. The heat change (ΔQ) can be calculated using the formula ΔQ = m * L, where m is the mass and L is the latent heat of vaporization for water. It's important to note that "Q" is not the mass itself, but rather the total heat involved in the phase transition. Understanding these concepts is crucial for accurately computing the entropy change.
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Homework Statement


Compute the entropy change of 5.00 g of water at 100°C as it changes to steam at 100°C under standard pressure.

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The Attempt at a Solution


5/100+100 is what i did and my teacher says its wrong 'cause its in the formula
 
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Nicco de Vera said:
wrong 'cause its in the formula
In what formula?
 
it is said that the formula was change in S= Change in Q / T
 
It said absolute temperature; what is the absolute temperature? Further, "Q" is not mass.
 

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