The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions:
(a) For how many seconds did the ice block have no change in temperature?
(b) For how long was there a change in temperature?
(c) After how many seconds of heating did the temperature become constant at `0^(@)C`?
(d) What was the temperature after 25 seconds?
(e) What will be the temperature after 1.5 minutes? Justify your answer.