The hourly energy requirement of an astronaut can be satisfied by the energy released when 34g of sucrose are burnt in his body. How many g of oxygen would be needed to be carried in space capsule to meet his requirement for one day?

Q: The hourly energy requirement of an astronaut can be satisfied by the energy released when 34g of sucrose are burnt in his body. How many g of oxygen would be needed to be carried in space capsule to meet his requirement for one day?

(A) 916.2 gm

(B) 91.62 gm

(C) 8.162 gm

(D) 9.162 gm

Sol: C12H22O11 + 12O2  → 12CO2 + 11H2O

1 mole of starch requires 12 mole of oxygen

∴ $\large \frac{34}{342}$ mole of starch requires $\large \frac{34}{342} \times 12 \times 32 \times 24 $

= 916.2 gm

Ans: (A)