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anonymous
 one year ago
If the entropy change for a system at 100.0°C is 20.0 J/K, then which of the following describes the heat?
A. 7.46 kJ of heat added
B. 2.00 kJ of heat removed
C. 2.00 kJ of heat added
D. 7.46 kJ of heat removed
*thanks:)
anonymous
 one year ago
If the entropy change for a system at 100.0°C is 20.0 J/K, then which of the following describes the heat? A. 7.46 kJ of heat added B. 2.00 kJ of heat removed C. 2.00 kJ of heat added D. 7.46 kJ of heat removed *thanks:)

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2hint: this formulas, in general, holds: \[\Large \Delta S = \frac{Q}{T}\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2no, we have to write the inverse formula, then we have to compute the absolute temperature \[\Large T = t + 273\] \[\Large Q = T\Delta S\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh okay! so 373 * 20 ? and we get7460? so that means choice D? 7.46 kJ heat removed? since it is negative?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2congratulations!!!!!
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