2 years ago

When water evaporates at constant pressure, the sign of the change in enthalpy

1 answer:

8 0

B. is positive
H20 (l)--> H20 (g)
when that happens, the heat is absorbed into the liquid to change the state of the liquid to gas; therefore, in order to change to a gaseous state, heat must be a reactant. and so enthalpy is increasing

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$\huge\boxed{\sf True}$

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