Q. Which of the following is correct for $C(graphite) + O_{2}\ (gas) \rightarrow CO_{2}$ , heat =$-$348 kJ?
A) Heat absorbed
B) Mass of product >Mass of reactant
C) Mass of product < Mass of reactant
D) Mass of product = Mass of reactant
Explanation
(d)
Cgraphite+$O_{2}(g) \rightarrow CO_{2};\mathrm{\Delta}H = - 348$ kJ
12 g 32 g 44 g
In the above reaction, heat is evolved and mass of product is equal to mass of reactant.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.