Allied & ICAR Exam Bank • ALLIED_0693 MCQ • 1 Mark

Section 7: Dairy and Food Engineering

Heat and Mass Transfer in Food Processing

Subtopic: Heat and Mass Transfer in Food Processing

Question Statement:

Stefan-Boltzmann law states that the total radiant heat energy emitted per unit area by a blackbody is proportional to:

Options:

  • (A) The fourth power of absolute temperature ($E = \sigma T^4$)
  • (B) Absolute temperature squared ($T^2$)
  • (C) Absolute temperature linearly ($T$)
  • (D) Logarithm of temperature

Answer Key:

A

Step-by-Step Solution & Explanation

Radiation emission is $E = \epsilon \sigma T^4$, where $\sigma = 5.67 \times 10^{-8}\text{ W/(m}^2\cdot\text{K}^4)$.
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