True. Boiling is a phase change process where a liquid turns into a gas (vapor) upon receiving enough heat. During boiling, the temperature of the liquid remains constant (at its boiling point) while the phase change occurs, but the overall system can gain heat as more energy is supplied, and it can result in changes in pressure or other conditions depending on the environment. However, under constant pressure, boiling occurs at a specific temperature where the liquid transitions to vapor without an increase in temperature during the phase change itself. Therefore, the statement can be interpreted in different contexts, but generally, it is understood that temperature can remain constant during a phase change while gaining energy.
So, the accurate response is True, but with the caveat that the temperature of the liquid during boiling is constant if at the boiling point.