it is generally seen that, when a substance absorbs heat energy, its heating curve shows two plateaus. which…
it is generally seen that, when a substance absorbs heat energy, its heating curve shows two plateaus. which phenomenon is indicated by these plateaus?\na melting\nb boiling\nc phase change\nd crystallization
Answer
Brief Explanations:
During phase - change processes (melting and boiling), a substance absorbs heat energy without a change in temperature, which is shown as plateaus on a heating curve. Melting is the solid - to - liquid phase change and boiling is the liquid - to - gas phase change. Both are types of phase changes.
Answer:
C. phase change