In an ideal rankine cycle (1-2-3-4-1 where 1 is turbine inlet, 2 is turbine exit) the following data are supplied: h1 = 3445, h2 = 2467, h3 = 340, and h4 = 344.
a) determine the back work ratio in percent (bwr is pumping power divided by turbine power) %
b) if the net power produced by the plant is 100 mw, determine the mass flow rate through the cycle. kg/s
c) the thermal efficiency of the cycle in percent.

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

where are the choice options?

може ли да зареждате повече информация, моля

the objects have the same charge is correct.

nathan lee