In a closed system, volume changes from 1.5 m3 to 7.5 m3 and heat addition is 200 kJ. Calculate the change in internal energy given the pressure volume relation as P = V2 + (10/V), where P is in kPa and V is in m2

Let the pressure in the cylinder shown below be a function of volume such that P = C/V (where C is a constant). (a) If the initial pressure is 300 kPa, the initial volume is 0.025m³, and the final volume is 0.06 m³, find the work done. (b) Is the sign correct for this process? Explain your answer. System Initial boundary position 1 Final position 2 Area A

The piston of a vertical piston-cylinder device containing a gas has a mass of 50 kg and a cross- sectional area of 0.04 m2, as shown in the figure. The local atmospheric pressure is 0.97 bar, and the gravitational acceleration is 9.81 m/s². What is the pressure inside the cylinder?

Q4\closed system of 2kg undergoes adiabatic process. The work done on the system is 30000 J. if the relation velocity during the process is (V2² - V12= 216 ) the elevation of system increase from 32M to 77M. Determine the change in internal energy of the system