What do you conclude from each graph?

GRAPH 1

Conclusion: The graph represents temperature of a pure substance.

Explanation: From 0 to 6 minutes, temperature of the substance increases from 20°C to 80°C. Then it remains constant at 80°C from 6 to 10 minutes.

Pure substances only have a constant temperature at which they start boiling.

GRAPH 2

Conclusion: The graph represents temperature of impure substance.

Explanation: From 0 to 6 minutes, temperature of the substance increases rapidly from 20°C to 80°C. Then it slowly increases from 80°C to 90°C from 6 to 10 minutes.

Hence implies it is an impure substance.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >