Q. 2.1 g of Fe combines with S evolving 3.77 kJ. The heat of formation of FeS in kJ/mole is
A) $- 1.79$
B) $- 100.5$
C) $- 3.77$
D) None of these
Explanation
(b)
$\mathrm{\Delta}H$/mol of FeS$= \frac{3.77 \times 56}{2.1} = 100.5$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.