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Grade: 11
        
when 1 mol of water s vapourised at 100 degree celcius , the heat absorbed is 9710 .the delta s is [change in entropy ]
7 months ago

Answers : (1)

Arun
21556 Points
							
Vaporization of liquid leads to an increase in the degree of disorder or entropy. Entropy of vaporization is a measure of change in entropy during the process of vaporization. This entropy is positive. Entropy of vaporization ca be  calculated by the following formula.
Δs = ΔH /T
Molar heat of vaporization of water is 9710 cal/mol
Boiling point of water is 100 C =373K
Therefore Entropy of vaporization = 9710/373
                                                          =26.03 cal/mol/K
 
 
7 months ago
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