Q. Combustion of glucose takes place according to the equation $C_{6}H_{12}O_{6} + CO_{2} \rightarrow 6CO_{2} + 6H_{2}O;\mathrm{\Delta}H = - 72$kcal. How much energy will be required for the production of 1.6 g of glucose (Molecular mass of glucose = 180)?

A) 0.064 kcal
B) 0.64 kcal
C) 6.4 kcal
D) 64 kcal
Explanation

(b)
$\mathrm{\Delta}H$ per 1.6 g $= \frac{72 \times 1.6}{180} = 0.64$ kcal

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.