The reaction of sulfuric acid (H₂SO₄) with water is an exothermic reaction. When concentrated sulfuric acid is added to water, it releases a significant amount of heat. This is why it's important to always add acid to water (rather than the other way around) to prevent violent splattering and potential hazards. The heat generated can cause the water to boil, leading to dangerous conditions if proper precautions are not followed.
H2SO4 react with water is a exothermic or endothermic reaction
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