If the value of ΔH is positive for a reaction, it means that the reaction is?
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Correct Answer: Option B
Explanation:
- Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
- A system of reactants that absorbs heat from the surroundings in an endothermic reaction has a positive ΔH.
- examples of endothermic processes:
Melting ice cubes.
Melting solid salts.
Sublimation of dry ice into carbon dioxide gas.
Evaporating liquid water.
- Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
- A system of reactants that absorbs heat from the surroundings in an endothermic reaction has a positive ΔH.
- examples of endothermic processes:
Melting ice cubes.
Melting solid salts.
Sublimation of dry ice into carbon dioxide gas.
Evaporating liquid water.