Dagastinium, on the other hand, is a rare material that has a temperature dependent constant pressure heat capacity of cp = 0.1 x t j/(mol. k) in the range from 273 to 303 k. what is the entropy change of 2 moles of dagastinium between 273 and 303 k?

Answer : The change in entropy is 6 J/K

Explanation :

To calculate the change in entropy we use the formula:

and,

where,

= change in entropy

n = number of moles = 2 moles

= final temperature = 303 K

= initial temperature = 273 K

= heat capacity at constant pressure =

Now put all the given values in the above formula, we get:

Therefore, the change in entropy is 6 J/K

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the answer is d.) potassium