here are received 90,000 kg/h of steam at 2.15 MPa, 480 °C by a Rankine engine; khaust occurs at 0.10 MPa. For the engine, find (a) W (kW), (b) m (kg/kwh), and (c) ee . or the Rankine cycle, find (a)Wnet (KJ/kg), and (b) e. .

In a cylinder of an automobile engine, immediately after combustion the gas is confined to a volume of 53.0 cm³ and has an initial pressure of 3.60 × 106 Pa. The piston moves outward to a final volume of 300 cm³, and the gas expands without energy transfer by heat. (Assume the gas in the engine is diatomic with y 1.40.) (a) What is the final pressure of the gas (in kPa)? = 317.920813906 kPa (b) How much work is done by the gas in expanding (in J)? 238.559389571 J (c) What If? If the engine operates in an ideal Otto cycle and 0.0125 mol of fuel-air mixture is injected into the cylinder during the intake stroke, what are the temperatures (in K) at points A, B, C, and D of the cycle as shown in the figure? P TA TC Adiabatic C processes ΤΑ A B TB То Тр = = = || B V V2 V₁ K K K K K

Hi please show calculations or diagrams if required thank you

3. Please calculate the annual electricity production of a wind farm with 20 turbines. The annual mean wind speed is 7 m/s and diameter of the blades is 20 m. If we assume power consumption of a person is 3,000 kWh, about how many people will this energy support? Annual electricity production (KWh) = K Vm³ At T Where: - - - K = 3.2 (factor based on turbine performance) Vm= annual mean wind speed (m/s) At = swept area of turbine (m2) T = number of turbines Suitable for medium- to large-scale wind turbines (> 200 m2 swept area)

One mole of an ideal gas is heated slowly so that it goes from the PV state (P, V;) to (2P;, 2V;) in such a way that the pressure is directly proportional to the volume. (a) How much work is done on the gas in the process? (Use any variable or symbol stated above along with the following as necessary: n and R.) W = (b) How is the temperature of the gas related to its volume during this process? (Do not substitute numerical values; use variables only. Use the following as necessary: n, R, V, Vi, and P.) T = Need Help? Read It

Hi, can you please help me with these two questions? I would like to understand what is happening through the schematics first before moving on to the substantive equations.

Thermodynamics

While camping, you observe a lightning bolt, and 4.0 s later you hear the associatedthunder. How far away is the strike?

Thermodynamics