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labwork [276]
3 years ago
10

how dose the scientist know the substances goes through a change of state during the time period labeled B on the graph?

Chemistry
1 answer:
Nadusha1986 [10]3 years ago
4 0

Answer:

The temperature remains constant

Explanation:

In a plot of temperature against time, it is easy to spot the points on the graph where a change of state is taking place.

During a change of state, the temperature does not not change with time. These are points that are plateaus on the temperature-time graph.

This is because, during phase change, the heat that is added is used in breaking intermolecular forces therefore a temperature change is not observed until the phase change is complete.

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