Question

The chart provided illustrates a heating curve.

image 0cc9b0563f47497a9950612993d5e0d2

The depicted heating curve showcases a substance initiating as a solid below its melting point. Which statement most effectively elucidates the information presented in the segments labeled B to C and D to E?

(1 point)
Responses

In both of these intervals, a phase transition is taking place. In the segment from B to C, the substance undergoes a transition from a gas to a liquid, while in the segment from D to E, the substance undergoes a transition from a liquid to a solid.
In both of these intervals, a phase transition is taking place. In the segment from B to C, the substance undergoes a transition from a gas to a liquid, while in the segment from D to E, the substance undergoes a transition from a liquid to a solid.

In both of these intervals, there is a reduction in kinetic energy. From B to C, the substance undergoes a transition from a solid to a liquid, and from D to E, the substance experiences a change from a liquid to a gas.
In both of these intervals, there is a reduction in kinetic energy. From B to C, the substance undergoes a transition from a solid to a liquid, and from D to E, the substance experiences a change from a liquid to a gas.

In both of these phases, a phase transition is underway. Moving from B to C, the substance is transitioning from a solid to a liquid, and from D to E, the substance is undergoing a change from a liquid to a gas.
In both of these phases, a phase transition is underway. Moving from B to C, the substance is transitioning from a solid to a liquid, and from D to E, the substance is undergoing a change from a liquid to a gas.

In both of these phases, there is a decline in kinetic energy. Moving from B to C, the substance undergoes a transition from a gas to a liquid, and from D to E, the substance experiences a change from a liquid to a solid.
In both of these phases, there is a decline in kinetic energy. Moving from B to C, the substance undergoes a transition from a gas to a liquid, and from D to E, the substance experiences a change from a liquid to a solid.
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Answer 1

To interpret the heating curve effectively, we need to understand the phase changes being represented:

1. Transition from B to C typically involves a phase change, but it is between solids and liquids or liquids and gases.
2. Transition from D to E also signifies a phase change.

Looking at the typical heating curve structure:
- The segment from B to C usually indicates a phase change where a solid melts into a liquid.
- The segment from D to E generally indicates a phase change where a liquid freezes into a solid.

Considering this understanding, the correct statement that most accurately describes the transitions from B to C and D to E is:

"In both of these intervals, a phase transition is taking place. In the segment from B to C, the substance undergoes a transition from a solid to a liquid, while in the segment from D to E, the substance undergoes a transition from a liquid to a solid."

This choice correctly identifies the phase transitions and aligns with the behavior of substances on a heating curve.