Question

19. For the process
AH for (A → X) = 50 kJ
AH for (
Y X) = 20 kJ
AH for (B - Y) = 30 kJ
Then AH for A - B will be
(1) 100 kJ
(2) -100 kJ
(3) Zero ku
(4) -50 kJ​

Answer 1

May be 3)

Explanation:

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