Answer all questions correctly in the examination booklet (10 pts each) 1) indicate if entropy is increasing or decreasing for each of the following processes: a) making ice cubes b) alphabetizing files c) 2 kcio, 2 kcio, +0 2) using the data provided, determine if the following reactions are spontaneous: chaại + 500 - 3 co2 + 4ho) 3)at what temperature is the following reaction at equilibrium? 2na,, + 2h,0 - 4naoh + o, ah -109 kj, as -133.2 j/k 4) is the reaction 0, +4h' + 4fe - 2 h,0 +4fe(ag'=-177.35 kj) spontaneous at 25°c and a ph of 2.56 if [fe] -0.02 m. [fe"]=0.89 m and p -0.35 atm? 5) the reaction h, +1, -2hi is in equilibrium at 730°c when pe=pp=0.35 atm and p-0.05 atm. what is the value of ag at this temperature? 6) balance the following redox reaction: sn? + cr,0,- sn" + cr+ 7) write a balanced equation and determine eº for each of the following cells: a) crcrnini b) (cf|cl|mno, mn) 8) for the reaction: sr+ mg sr + mg, k -2.69 x 102 at 25°c. calculate e 9) is the following reaction spontaneous at so'c? ag ag (0.0078 m) ni(0.023 m)ni 10) one gram of sn was electroplated from a sncl, solution in 30 minutes. what was the current used?