Accepted Answer
In a typical heating curve, the nature of the slope of the curve when a substrate is being heated, but there is no change of state occurring is having a positive gradient (slope > 0).We can use what we know about heat capacity (solid, liquid, or gas) and heats/enthalpies of transition to create a heating curve for any substance.While a substance changes state along a heating curve, its temperature remains constant. On the contrary, while the state of a substance does not change, its temperature changes (as indicated by sloped lines). If the slope's gradient is more than 0 (positive), the temperature is increasing.To know more about heating curve, go to:brainly.com/question/10481356#SPJ4