Please Answer ALL. Thanks. Questions 36 and 37 concern a particular reaction whe

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Please Answer ALL.

Thanks.

Questions 36 and 37 concern a particular reaction where: AH 50 kJ AS 100 JK 36. Assuming that enthalpy and entropy do not vary with temperature, at what temperature will the reaction be at equilibrium? A. 500 K B. 500 K C. 500 oC D. 0.5 K E. 0.5 oC 37. If the reaction mixture is held at a temperature of 100 °C, will the reaction occur spontaneously or not? A. The reaction is spontaneous at all temperatures B. AG 13 kJ, reaction is spontaneous C. AG 13 kJ, reaction is non spontaneous D. AG 40 kJ, reaction is spontaneous E. AG 40 kJ, reaction is non spontaneous

Explanation / Answer

Ans 36. B. 500 K

For the reaction at equillibrium Delta G = 0

Delta G = Delta H - T Delta S

Delta H = T Delta S

putting the values ,

-50000 = T x -100

T = 500 K

Ans 37. B. Delta G = -13KJ,reaction is spontaneous

100oC = 373 K

Delta G = -50000 - 373 x -100

Delta G = -12700J or -13 KJ

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