1 : In a steam power plant , steam enters at 8 MPa and 700 C , the condenser pressure is 8 kPa , and the net power out of the plant is J100MW . Determine enthalpy and entropy at point 1, dryness frection , and enthalpy and entropy at point 2 , enthalpy and entropy at point 3 , work torbine , work net , Qadd to boiler , thermal efficency for cycle , Q rejeted from condenser , mass flow rate of steam , Q rejeted from condenser

Q: A  well insulated steam turbine receives steam at temperature T1 = 540 °C and pressure p1= 30 bar.…

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Q: Question 1: Superheated steam enters a turbine at 7 MPa, 550°C, and exits at 150kPa. a) Draw the…

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Q: Superheated steam at 652 psia and 608 Fis generated in an Oil-fired boiler at the rate of 100,000…

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Q: 4) Air is compressed in a steady-state compressor from 150 kPa and 16 °C to 650 kPa. The mass flow…

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Q: Given 0.603MW electrical power supplied to a boiler when the temperature of the entering water is 20…

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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.