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

Comprehend the process and types of cell reproduction, including mitosis.

Identify the phases of mitosis and their characteristics.

Distinguish between cancerous and non-cancerous (neoplastic) cell growths.

Understand the function and importance of telomeres and telomerase in cell aging and cancer.

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Definitions:

Theory Y

A management theory developed by Douglas McGregor that assumes employees are self-motivated, seek responsibility, and want to make creative contributions to the workplace.

Self-fulfilling Prophecies

Expectations about a subject that cause the subject to act in ways that confirm the expectations.

Adult Personality

The culmination of personality development over an individual's lifetime, showcasing stable psychological traits.

Unity of Direction

A principle that all members of an organization should work towards the same objectives in a coordinated manner.