A cylinder is initially filled with saturated vapor mixture of R-134a at a specified pressure. Heat is transferred to the cylinder until the refrigerant vaporizes complately at constant pressure. The initial volume, the work done and the total heat transfer are to be determined (x1 = 0,25 m = 0,2 kg, p = 200 kPa)

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

Mr. rose asked his student to draw a quadrilateral with four unequal sides. an example of this kind of quadrilateral