Question

1 write an appropriate title for the graph.
title: heat
2 what is the independent (manipulated) variable in this experiment?
3 if heat was added at a constant rate to the solid substance, why did the temperature remain at 18°c for approximately 8 minutes?
4 according to your graph, what would the temperature of the substance be at 23 minutes?
5 how long did it take the temperature to reach 31°c?
6 how many coordinate pairs are there in this graph?
7 predict the time it would take the temperature to reach 52°c
8 would the reverse of this graph look the same if the heat was removed after 31 min and then allowed to cool?

Explanation:

1.

A more descriptive title for a graph about heat - related experiment could mention the substance and what is being measured regarding heat.

In an experiment where heat is added to a substance, the variable that is controlled (manipulated) is the time over which heat is added.

When a solid is changing phase (e.g., melting), the heat energy is used for the phase - change process rather than increasing the temperature.

Answer:

"Temperature Change of a Solid Substance as Heat is Added"

2.