We’re being asked to convert the units of R from kPa • km–1 to kJ • m–4.
Let us first convert kPa to Pa and km to m. We need the following conversion factors for this:
1 km = 103 m 1 kPa = 103 Pa 1 Pa = 1 N • m–2
A NASA spacecraft measures the rate R of at which atmospheric pressure on Mars decreases with altitude. The result at a certain altitude is:
R = 0.0272 kPa•km-1
Convert R to kJ•m-4.
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