. Helium gas is compressed from 90 kPa and 30 C to 450 kPa in a reversible, adiabatic (i. e., isentropic) process. Determine the final temperature and the work done (kJ/kg), assuming the process takes place (a) in a piston-cylinder device and (b) in a steady-flow compressor. (You may take the specific heat of He to be cp = 2.5*Rg where Rg = Ru/MW.)

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-