can you explain the answer QUESTION 2 What is the change in internal energy of a...

Question

Question

can you explain the answer

Answer 1

Answer #1

From first law of thermodynamics,

∆E = q + w

(∆E = change in internal energy , q = heat , w = work)

Given , q = +635 J [heat absorb by system is taken to positive)

w = - 249 J (work done by system is taken to negative)

∆E = 635-249 => 386 J

(E) is correct option

Answer 2

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