Duff States That Equal Masses of All Substances Have Equal $\Delta$

question 58

Multiple Choice

Duff states that equal masses of all substances have equal changes in internal energy when they have equal changes in temperature.Javan states that the change in internal energy is equal to a constant times the change in temperature for every $\Delta$ T,no matter how large or how small $\Delta$ T is,but that the constant is different for different substances.Which one,if either,is correct?

• A)Neither,because the specific heat depends on the substance and may vary with temperature.
• B)Neither,because a change of state may involve release or absorption of latent heat.
• C)Neither because a substance may do work during a temperature change.
• D)All of the statements above are correct.
• E)Only statements (a)and (b)are correct.

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Definitions:

Frequency of Service

The regularity or rate at which a public or private service is offered or performed, often measured within a certain time frame.

Commuter Rail

A passenger rail transport service that primarily operates within urban areas, connecting workers to their places of employment.

Positive Correlation

A relationship between two variables where they move in the same direction, meaning when one variable increases, the other also increases, and vice versa.

Slope

In mathematics, the measure of the steepness or incline of a line, often calculated as the ratio between the change in the y-value to the change in the x-value.