Hess’s Law and thermochemistry are high-yield topics on the DAT General Chemistry section and frequently tested on the exam.
In this video, Dr. Jim Romano walks through Hess’s Law step by step, showing how to handle enthalpy changes and avoid common test-day mistakes.
Dr. Romano has helped DAT and OAT students for over 35 years and is the author of the DAT Destroyer and OAT Destroyer series.
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(Official DAT Destroyer Biology Review PDF by Dr. Jim Romano — free in the Files section):
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