For the Process of Dissolving a Solid in a Liquid,which

question 68

Multiple Choice

For the process of dissolving a solid in a liquid,which of the following statements is true?

• A)ΔH_soln is always negative and ΔS_soln is usually positive.
• B)ΔH_soln is always positive and ΔS_soln is usually negative.
• C)ΔH_soln is either positive or negative and ΔS_soln is usually positive.
• D)ΔH_soln is either positive or negative and ΔS_soln is usually negative.

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Definitions:

Qualitative Change

Discontinuous changes in kind, structure, or organization.

Theories Change

The concept that scientific theories evolve over time as new evidence emerges and older explanations are refined or replaced.

Incorporate

To include or integrate a part into a whole.

Assumptions

Beliefs or statements taken for granted without proof.