Answer to Question #269537 in Molecular Physics | Thermodynamics for ahm

Question #269537

  A  cylindrical gas tank 1 m long, inside diameter of 20 cm, is evacuated and then filled with carbon dioxide gas at 25°C. To what pressure should it be charged if there should be 1.2 kg of carbon dioxide?



1
Expert's answer
2021-11-22T10:14:39-0500

V=lA=lπd2/4=13.140.22/4=0.1256 (m3)V=l\cdot A=l\cdot\pi d^2/4=1\cdot3.14\cdot0.2^2/4=0.1256\ (m^3)


pV=mRT/Mp=mRT/(MV)=pV=mRT/M\to p=mRT/(MV)=


p=1.28.31298/(0.0480.1256)493 (kPa)p=1.2\cdot8.31\cdot298/(0.048\cdot0.1256)\approx493\ (kPa) . Answer




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