When a Substance Changes Phase,from Solid to Liquid or Liquid

question 26

Multiple Choice

When a substance changes phase,from solid to liquid or liquid to vapor and vice versa,there is no change in temperature,even though heat is being added or removed.Why is there no change in temperature?

• A)During a phase change,energy is used to break/establish the intermolecular bonds rather than stored as kinetic energy of the molecules.
• B)During a phase change,temperature is not well defined since there are two phases involved.
• C)During a phase change,energy is needed to overcome the gravitational pull.
• D)During a phase change,the temperature measured is the last temperature of the measuring device.
• E)none of the above

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Definitions:

Leadership Practices

The recurrent actions or behaviors engaged by leaders, which can influence the motivation, performance, and well-being of their followers.

Crisis Leadership

The capability of leading and managing an organization before, during, and after a crisis in a way that minimizes damage and enables it to recover quickly.

Disaster Planning

The process of creating procedures and measures to prepare, respond to, and recover from emergency situations or natural calamities.

Transactional Leader

A leadership style focused on the exchange process between leader and followers, where performance is rewarded and not meeting standards is punished.