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3. (30 pts.) A vertical cylinder fitted with a frictionless piston contains 3 kg of Air at 100 kPa and 27°C. Initially,
Posted: Fri Mar 04, 2022 10:23 am
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- 3 30 Pts A Vertical Cylinder Fitted With A Frictionless Piston Contains 3 Kg Of Air At 100 Kpa And 27 C Initially 1 (22.87 KiB) Viewed 37 times
3. (30 pts.) A vertical cylinder fitted with a frictionless piston contains 3 kg of Air at 100 kPa and 27°C. Initially, the piston is resting on a stop as shown. The weight of the piston is such that it takes an air pressure of 175 kPa for it to start rising. The air is heated until its initial volume doubles. (a) What is the system" here? Draw the system boundary using a dashed line. (b) Calculate the overall work (kl) and indicate its sign (Positive or Negative? Why?) c) Calculate the overall heat transfer (kJ) and indicate its sign (Positive or Negative? Why?) Air