When a Substance Melts at Its Normal Melting Point,the Sign

question 35

Multiple Choice

When a substance melts at its normal melting point,the sign of ΔH is ________ and the sign of ΔS of this phase change is ________.

• A)+,-
• B)-,+
• C)+,+
• D)-,-

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Definitions:

Largest Sample

The most extensive or most significant sample size from a set of samples collected for statistical analysis or experimentation.

Healthcare-associated Infections

Infections that patients acquire during the course of receiving treatment for other conditions within a healthcare setting.

SSIs Rate

The occurrence rate of surgical site infections within a health-care setting.

National Average

The mean value of a particular measure calculated across an entire country.