What is true for an ideal transparent material, such as a gas?

Chemical Heat Transfer MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Chemical Heat Transferchemical-engineering › heat-transfer-chemical-engineering
Published
3 Mar 2019
Last updated
28 May 2026

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Choose the correct answer

Explanation

For a perfectly transparent medium like gases, the absorptivity is zero, meaning no absorption occurs; the reflectivity is also zero, indicating no reflection; and the transmissivity is equal to one, allowing all radiation to transmit through. Therefore, the correct statement is that transmissivity equals one.

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