Allied & ICAR Exam Bank • ALLIED_1278 NAT • 2 Marks

Section 6: Agricultural Process Engineering

Grain Storage Structures and Silos

Subtopic: Grain Respiration

Question Statement:

Aerobic respiration of moist stored grain oxidizes glucose: $C_6H_{12}O_6 + 6 O_2 \to 6 CO_2 + 6 H_2O + 2835\text{ kJ/mol}$. For each mole of glucose ($180\text{ g}$) oxidized, the respiratory quotient ($RQ = \frac{\text{Moles of } CO_2 \text{ produced}}{\text{Moles of } O_2 \text{ consumed}}$) is:

Answer Key:

1.0

Step-by-Step Solution & Explanation

$RQ = \frac{6\text{ moles } CO_2}{6\text{ moles } O_2} = 1.0$. (For carbohydrate substrates under complete aerobic respiration, $RQ = 1.0$).
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