What could be explained from the straight horizontal line observed at the beginning and end of the temperature v/s time graph of water when heated continuously and uniformly?

How could latent heat be explained from temperature vis time graph of water when heated continuously and uniformly? Explain in detail.

(1) Take a few pieces of ice in a glass beaker as shown in figure. (2) Insert the bulb of a thermometer in ice and measure its temperature. (3) Put the beaker on a stand and heat the ice using a burner. (4) Record the temperature using the thermometer after every minute. (5) As the ice is heated,it starts melting. Stir the mixture of ice and water. (6) Continue the heating even after ice starts melting. (7) Draw a graph of temperature versus time. Explain the role of latent heat in the change of state of a substance.

A rod of unifrom cross section is heated at temperature t_(0) at a point which is at n_(1) times if its length (n_(1) lt 1) from its one end in stready state The temperature at this end is t_(1) and at other end is t_(2) Rate of vapourisation of water at either end of the rod is same. The end at which temperature is t_(2) is how much more far away that the other end from the point at which the rod is heated .

Excess of sodium hydroxide pellets are added to dilute hydrochloric acid and the temperature change of the mixture was measured over a period of time. The given graph shows the temperature change Time (s) with time. What can be inferred from the graph?

A body is moved from rest along a straight line by a machine delivering constant power. The ratio of displacement and velocity (s//v) varies with time t as

(1) Take a few pieces of ice in a glass beaker as shown in figure. (2) Insert the bulb of a thermometer in ice and measure its temperature. (3) Put the beaker on a stand and heat the ice using a burner. (4) Record the temperature using the thermometer after every minute. (5) As the ice is heated,it starts melting. Stir the mixture of ice and water. (6) Continue the heating even after ice starts melting. (7) Draw a graph of temperature versus time. Explain the term latent heat of vaporization.

(1) Take a few pieces of ice in a glass beaker as shown in figure. (2) Insert the bulb of a thermometer in ice and measure its temperature. (3) Put the beaker on a stand and heat the ice usinga burner. (4) Record the temperature using the thermometer after every minute. (5) As the ice is heated,it starts melting. Stir the mixture of ice and water. (6) Continue the heating even after ice starts melting. (7) Draw a graph of temperature versus time. Explain the following temperature vs time graph.