Isotopes

Question 1

Isotopic fractionations

Answer 1

relative proportions of isotopes differ from normal conditions (differences in isotope ratios)

Question 2

What does the energy well diagram show

Answer 2

12C has a lower binding energy than 13C → lower potential energy and binding energy

Question 3

Carbon isotope more likely to participate in endothermic reactions

Answer 3

12C

Question 4

Carbon isotope more likely to be found in a strong bond

Answer 4

13C

Question 5

Emblemen-Urey reaction

Answer 5

CO2 + CaSiO3 ⇄ CaCO3 + SiO2