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could someone show how to get these answers? Which of the following statements i

ID: 856864 • Letter: C

Question

could someone show how to get these answers?

Which of the following statements is true? 1. In a spontaneous process, deltaG has a positive value 2. A system at constant temperature cannot experience entropy changes 3. Exothermic reactions are always spontaneous 4. For a process to be spontaneous, the number of moles of product must exceed the number of moles of reactant 5. The entropy of the universe is increasing A two bulbed flask contains four particles. What is the probability of finding all four particles in only one of the bulbs? Which of these processes occurs with a decrease in entropy? 1. combustion of methane 2. oxidation of glucose 3. melting of ice 4. decomposition of liquid water 5. rusting of iron Which of the following liquids is likely to have the highest value for Se? 1. Hg 2. CH3OH 3. N2H4 4. H2O 5. C2H5OH

Explanation / Answer

1) False, Delta G is negative for spontaneous
2)False, There is a possibility in entropy change
3)True
4)False
5) True

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Sample space=24=16
Favourable =1
Probability=1/24=1/16

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Melting of ice ( mostly physical processes are accompanied by decrease in entropy)

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Standard entropy of Ethanol is Highest ( C2H5OH)