Abatch dryer removes water from a solid at a rate of 30 kg/hr during the constant rate period. critical moisture content is 0.25 kg h2o/kg dry solid. the equilibrium moisture content of the material is 0.035 kg h2o/kg dry solid. the drier is initially charged with 750 kg of total material, which contains 2 00 000 g of moisture. the final product should contain 0.08 kg h2o/kg dry solid. the falling rate period can be represented by a straight line. the total drying area is 5 m^2 .
1. draw a schematic diagram that depicts the process.
2. determine the total drying time to produce the product.

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Two atoms interact with each other as shown by the equation. complete the equation by filling in the missing parts. 1 2 3 4 5 h he li

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.