GATE XE · 2021 · XE-H
Question 17: Atmospheric Science
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Question 17
XE-HNAT2 marksNeeds review
In an atmosphere, temperature (T) decreases linearly with height above the ground (z), i.e., T(z) = T₀ − γ z, where γ is a constant. Surface pressure is 900 hPa. If the atmosphere is at rest, then the value of z at which the pressure decreases to half of that at the surface is ____ m (round off to the nearest integer).
Take acceleration due to gravity g = 10 m s⁻², gas constant R = 300 J kg⁻¹ K⁻¹, T₀ = 300 K and γ = 1/30 K m⁻¹, and the atmosphere behaves as an ideal gas.
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2021XE-H
GATE XE 2021 · Paper 1
Engineering Sciences · Original paper archive
- Section
- Section XE-H
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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