In a 3 stage process Q1 = 10 J, Q2= – 15 J, Q3 = 25 J, if ∆E1 = 15 – McqOptions

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1.	In a 3 stage process Q1 = 10 J, Q2= – 15 J, Q3 = 25 J, if ∆E1 = 15J and ∆E3 = 10 J, what is the work done in second stage, if the total ∆E is 30 J?
A.	5 J
B.	10 J
C.	15 J
D.	20 J
Answer» E.

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