Question

Why are heat transfers associated with phase changes known as latent or "hidden" heats?

Heat absorbed or released in a phase change is measured in kJ while temperature is measured in °C.

The enthalpy of vaporization and enthalpy of condensation values for a substance add to zero.

The enthalpy change values for pure substances tend to be small.

The heat absorbed or released by a phase change does not cause a temperature change.

Answer 1

@jhonyy9 @phi @AloneS @sweetburger @welshfella @nincompoop @Nnesha @marvin456

Answer 2

A little research sorry, I forgot about these, but I read through some things all coming to the same theory. Let's see if I can explain it to you, and maybe you will see the correct choice:

Answer 3

Heat absorbed or released in a phase change is measured in kJ while temperature is measured in °C. (Measurement has no meaning to the phases stated.)

Answer 4

The enthalpy change values for pure substances tend to be small. It seems to be theoretically proven the value would be proven to become zero, not to a small value.

Answer 5

The heat absorbed or released by a phase change does not cause a temperature change. A temperature change does occur and result to zero.

Answer 6

The enthalpy of vaporization and enthalpy of condensation values for a substance add to zero. This seems to state the actual reason, to further express the achievement of getting the output to be zero.
Adding the values together, for example.(-24) + 24 = 0.

Answer 7

What do you believe to be the answer now?

Answer 8

Let me see.

Answer 9

"add to zero" It results to zero, which is your answer. Sorry for not completely clarifying what I stated.

Answer 10

Is it D?

Answer 11

The enthalpy of vaporization and enthalpy of condensation values for a substance add to zero. Is the correct answer, glance at what I stated for this.

Answer 12

Ok.

Answer 13

I get it now, thanks!

Answer 14

Sure thing man.