MCQ
Who modified Bohr's theory by introducing elliptical orbits for electron path
- AHund
- BThomson
- CRutherford
- ✓Sommerfield
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$(A)$ $\Delta G$ is positive $(B)$ $\Delta S _{\text {system }}$ is positive
$(C)$ $\Delta S _{\text {surroundings }}=0$ $(D)$ $\Delta H =0$