Correct option is B
The correct answer is: (b) ΔH > 0 Explanation: In endothermic reactions, the system absorbs heat from the surroundings. This results in a positive enthalpy change (ΔH > 0), indicating energy is gained.
Information Booster:
· Photosynthesis is a classic endothermic process.
· Such reactions cause the system to feel cold to touch.
· They require external energy input (heat or light).
· ΔH > 0 indicates net energy absorption.
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