Q/ Super-heated vapor enters condenser of a steam power plant at 2 bar and 250 °C. The vapor is condensed at 0.2 bar and 60 °C. Condensed cooling water enters into another streamline at 25 °C and the water exits at 40 °C. The heat is transferred from the condensing steam to the cooling water with no change in kinetic and potential energies. Calculate (a) the ratio of the cooling water mass flow rate to the condensing steam mass flow rate. (b) The specific heat transfer from the condensing steam to the cooling water. Condensate Steam 0.2 bar 2 60 C 2 bar 200 C

P-4 Please I need help with this question needed very clearly and step by step explanation and needed with clear handwriting please, will be really appreciated for your help

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1. “The grain size of metal sheet influences its formability in two opposing ways. The yield strength of a metal increases as the grain size decreases. So, the formability of a component may decrease if the grain size gets too small. Larger grained metals have better formability, but the roughened surface that results from stretching metal with grain sizes that are too large is unacceptable for many applications. During a recrystallization anneal new grains form in the metal. The final grain size depends on the annealing temperature and annealing time.” As shown in the figure below (1"x1" area under a 50Xmagnification microscope), a cold-rolled metal has been annealed at 550 degrees C for one hour. Calculate the ASTM Grain Size Number for the following condition: image attached

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