I. According to the Second Law of Thermodynamics, the entropy of the universe mu

Question

I. According to the Second Law of Thermodynamics, the entropy of the universe must for a spontaneous process? in kJ/mol for AS in J/mol K fo 205.0 C a. temps above a. increase b. remain the same C c. decrease b. temps below c. temps above 4 d. temps below 32 2. Calculate G for the reaction: 2 song) 2 So,(g) + O(g) AG in kJ/mol for: SOg) -300.2, Sog)371.1 a. -70.9 6. The randomness C a. Gibb's energy Lb. entropy C c. kinetic energy C d. enthalpy C b. +141.8 C.-141.8 C d. +70.9 7. Two 6.5 L flasks cock. If 0.25 moles the right flask is en system upon openi 3. Calculate AS for the reaction: 2 NO(g) 2 N(g)+ O(g) AS in J/mol K for: NOg)-240.0, N(g)-191.5,048) L a. The entropy ren C b. The entropy de C c. There is too lit C d. The entropy inc 205.0 a. +157 J/K C b.-480 J/K C c. +108 J/K d.-157 J/K 8. Without detailec the system for 4. Consider the combustion of glucose (CH,O.).This reaction is: Mg(s) +02(g) N C a. non-spontaneous at all temperatures C b. non-spontancous towards lower temperatures a. positive (+) C b. too little informa c. spontaneous at all temperatures d. spontaneous towards higher temperatures c. negative ) C d. zero

Explanation / Answer

1) According to second law of thermodyanmics entropy of the universe is the summation of entropy of system and entropy of surrounding. i.e.-

(Entropy)universe = (Entropy)system + (Entropy)surrounding

hence this can be stated as entropy of universe must reamian the same

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