Question

How does the scientist know that the substance goes through a change of

state during the time period labeled B on the graph?
• A. The particles start slowing down.
• B. The temperature increases gradually.
• C. The temperature remains the same.
• D. The particles start moving faster.
SUBMIT

Answer 1

The temperature remains constant.

Step-by-step 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.