

please do both and make sure it's correct. I really need help and i have gotten the wrong answer twice.


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please do both and make sure it's correct. I really need help and i have gotten...
A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g.) W = J Enter an exact number. a=4 b = 4 C = 15 d = 4 | Om dm † a m 1 Cm When gas expands in a cylinder with radius r, the pressure P at any given time is a function of the volume V: P = P(V). The force exerted by the gas...
CAN YALL PLEASE HELP ME I HAVE 4 HOURS TO DO THESE!! THANK YOU!! Question 1 A mass of 4 kilograms of air in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 0.3 MPa, T1 = 211°C: Process 1–2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 0.3 MPa. Assuming ideal gas behavior, determine the temperature at state 3, in kelvin. _________________________________________________...
Please show all working so I can learn the material.
Partial answers I have are W1-2 =117KJ, Wspring/W12 = 0.641
Hopefully that helps you verify your answer a bit. Thank you in
advance!
SP7: (20 points) Hydrogen gas is contained in a vertical piston-cylinder device at 140 kPa and 0.3 mº. At this state, a linear spring with a spring constant of k=150,000 N/m touches the top of the piston but exerts no force on it because the spring is...
Please do it on a paper so i can see the equations
clearly.
The answer : T(beta) = 238.4 K
2.7 Bottle of beer When you open a bottle of beer, you can fleetingly see a bit of vapour in the opening. Here you are to analyse what happens. The gas in the bottle consists mainly of COa, with a little bit of water vapour. We will consider it to be like a gas v confined in a cylinder by...
To practice Problem-Solving Strategy 19.1 Work in Ideal-gas Processes. A cylinder with initial volume V contains a sample of a gas at pressure p. On one end of the cylinder, a piston is let free to move so that the gas slowly expands in such a way that its pressure is directly proportional to its volume. After the gas reaches the volume 3V and pressure 3p, the piston is pushed in so that the gas is compressed isobarically to its...
P3A.2 A sample consisting of 0.10 mol of perfect gas muICLUL is piston inside a cylinder such that the volume is 1.25 dm'; the external pressure is constant at 1.00 bar and the temperature is maintained at 300 K by a thermostat. The piston is released so that the gas can expand. Calculate (a) the volume of the gas when the expansion is complete; (b) the work done when the gas expands; (c) the heat absorbed by the system. Hence...
3. The gas in a cylinder slowly expands moving a 5-in diameter piston from its initial position at 3 in to its final position at 8 in. The pressure varies according to p=-0.01V2 + 8V, where V is the volume and p is the pressure in psi. Explain how much work in BTU is done during the expansion and prove your statement (10 points).
400 moles of an ideal monatomic gas are kept in a cylinder fitted with a light frictionless piston. The gas is maintained at the atmospheric pressure. Heat is added to the gas. The gas consequently expands slowly from an initial volume of 10 m3 to 15 m3. (a) Draw a P-V diagram for this process. (b) Is this thermodynamic process an isothermal expansion, an isobaric expansion or an adiabatic expansion? (c) Calculate the work done by the gas. (d) Calculate...
9) An insulated container contains V liters of hot water at temperature T. If M kg of ice at 0 °C is added to the water, what is the temperature of the system when it reaches equilibrium? Reminder, for water: 1L = 1 kg Cwater = 4190 Cice = 2100 ROK Lboll = 2.26 x 106 steam kg = 2000 .,Lmelt = 3.33 x 105 kg kg kg 10) In an engine, after the fuel is ignited, there is a...