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GATE CE 2020 Set 1 — Question 63

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NAT+2 / -0MediumAir Quality StandardsAir PollutionEnvironmental Engineering

Environmental Engineering → Air Pollution → Air Quality Standards

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Question

A gaseous chemical has a concentration of 41.6 μmol/m341.6 \text{ }\mu\text{mol/m}^3 in air at 1 atm1 \text{ atm} pressure and temperature 293 K293 \text{ K}. The universal gas constant RR is 82.05×10−6 (m3 atm)/(mol K)82.05 \times 10^{-6} \text{ (m}^3 \text{ atm)/(mol K)}. Assuming that ideal gas law is valid, the concentration of the gaseous chemical (in ppm, round off to one decimal place), is ________.
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