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ΔH is always positive for a ...........

a. endothermic reaction
b. exothermic reaction
c. spontaneous reaction.
d. nonspontaneous reaction.

User Catlan
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1 Answer

5 votes

Answer:

a. endothermic reaction

Step-by-step explanation:

In an endothermic reaction, heat is absorbed from the environment. This leaves the surrounding at a colder temperature compared to the system.

ΔH, the change in enthalpy is assigned a positive sign because the heat energy level of the final state is higher than that of the initial state.

Some examples are mostly dissolution substances in water.

User Siddharth Satpathy
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