If steam is heated in a rigif tank and its internal energy increases by 500 kJ, find the heat input to this system during this process?

in a closed system process, 600 Btu of heat is added to the system, and the internal energy of the system increases by 220 btu. calculate the work of the process

A steam turbine takes in super-heated steam at 2,000 kPa and 300 Celsius discharges at 50 kPa. What is the maximum theoretical work production in kJ/kg? What is the outlet temperature in Celsius?

A central power plant, rated at 800 000 kW, generates steam at 585 K and discards heat to a river at 295 K. If the thermal efficiency of the plant is 70% of the maximum possible value, how much heat is discarded to the river at rated power?

The enthalpy current of 250 kj enters the tank steadily, and two currents, one kg kg with an intensity of 2 kj and an enthalpy of890 , and the other with an kg intensity of 3 and an enthalpy of 445- kg leave the tank. If it works inside a kg kj mixing tank with a power of 6 kW, what is the amount of heat exchanged with the tank in terms of kilowatts?

(5)An insulated piston-cylinder device contains 15 L of saturated liquid water at a constant pressure of 950 kPa. Water is stirred by a paddle wheel while a current of 15 A flows for 28 min through a resistor placed in the water. If 64% of the liquid is evaporated during this constant pressure process and the paddle-wheel work amounts to 600 kJ, determine the voltage of the source. Also, show the process on a P-v diagram with respect to saturation lines. H,0 P= constant W. W.

A wet cooling tower is to cool 25 kg/s of cooling water from 40 to 30°C, at a locationin which the atmospheric pressure is 96 kPa. Atmospheric air enters the tower at 20 °C and 70 percent relative humidity, and leaves saturated at 35 °C. Neglecting the power input to the fan, determine (a) the volumetric flow rate of air at the cooling tower inlet and (b) the mass flow rate of make-up water required.

What is the maximum work that can be obtained from 2000 J of heat supplied to a steam engine with a high temperature reservoir at 440 °F if the low-temperature reservoir is at 30 °F?