Kilograms represented by the mass defect for oxygen-16: 2.20 × 10 -28 kg What is the nuclear binding energy for oxygen-16?

3.0 × 108 J

6.60 × 10-20 J

1.98 × 10 -11 J

3.69 x 10-24 J

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

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a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.