, 12.11.2019 10:31, ijohnh14

If velocity is decreasing, then acceleration:

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Physics, 22.06.2019 07:20, steven122048i
Aprocess depressurizes nitrogen adiabatically from an unknown pressure to 1 bar. the temperature of nitrogen is initially 300 k and after depressurizing it is 200 k. assuming nitrogen is an ideal gas, and that gas heat capacity of nitrogen is given by: cigp=31.1−0.0135t+2.68×10^−5t^2−1.1 7×10^−8t^3jmol^−1k^−1 a) calculate the initial pressure of nitrogen. b) calculate the entropy change of nitrogen due to this process.