Question

For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the Fnot enough information button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour System Change AS 1.0 g of sodium bromide (NaBr) The sodium bromide is dissolved In and 2.0 L of pure water at 8 °C.the water information 20. L of pure xenon (Xe) gas and The gases are mixed, with the 20.0 L of pure gas, both at 4 atm and-13°C. argon (Ar) gas, pressure kept constant at 4 atm. kept İ。Δ S not enough Information The seawater is passed through a reverse-osmosis fiter, which separates it into 750. ml of pureso water and 250. mL of brine (very saity water). A liter of seawater at 15 C not enough information A chemical engineer is studying the two reactions shown in the table below In each case, he fills a reaction vessel with some mixture of the reactants and products a a constant temperature of 142.0 C and constant total pressure. he measures the reaction enthalpy ΔΗ and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free second reaction. The results of his measurements are shown in the table. energy AG of the Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to rero decimal the conditions the because the system is at equilibrium. engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous AS# 5407. Which is 0 this reaction 。the reverse reaction either G 16 Which is spontaneous? O this reaction O the reverse reaction neither

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