The graph given above indicates change in temperature `(Delta t)` when heat (Q) was given to a substance. Which among the following parts of the graph correctly depict the latent heat of the substance?

Options

A. AB and BC
B. Bc and DE
C. CD and DE
D. DE and AB

Answer

B

Explanation

Latent heat is the heat released or absorbed by a body or a thermodynamic system during a constant- temperature process. A typical example is a change of state of matter, meaning a phase transition such as the melting ofice or the boiling of water.