Answers25-26 CHEMISTRY IN THE EARTH SYSTEM S1Conservation of EnergyQuestion 8
8
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Conservation of Energy

Question 8 • 25-26 CHEMISTRY IN THE EARTH SYSTEM S1

Which equation represents the law of conservation of energy in a closed system?

Answer
A
KEi + PEi = KEf + PEf
B
PEi + PEf = KEi + KEf
C
KEi – KEf = PEi – PEf
D
KEi – PEf = PEi – KEf
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