Get ready for the NCEA Level 1 Energy Test. Utilize flashcards and multiple choice questions with clear explanations and hints. Prepare for success!

Multiple Choice

Which statement about latent heat is true?

Latent heat is the energy involved when a substance changes state. During a phase change, the temperature stays the same, while energy is absorbed or released to break or form the molecular bonds that define the different phases. That’s why the true statement is that latent heat is the energy absorbed or released during a change in state. This energy is not about warming the substance while its phase stays the same—that’s called sensible heat. Latent heat applies to all phase changes, not just solid to liquid, and it does involve changing the phase, so the other descriptions don’t fit.

Latent heat is the energy involved when a substance changes state. During a phase change, the temperature stays the same, while energy is absorbed or released to break or form the molecular bonds that define the different phases. That’s why the true statement is that latent heat is the energy absorbed or released during a change in state.

This energy is not about warming the substance while its phase stays the same—that’s called sensible heat. Latent heat applies to all phase changes, not just solid to liquid, and it does involve changing the phase, so the other descriptions don’t fit.