At a Pressure of 1 Atmosphere a Column of Mercury

question 47

Multiple Choice

At a pressure of 1 atmosphere a column of mercury in a barometer is supported to the height h = 0.76 m.The density of mercury is 13.6 × 10³ kg/m³.A barometer of similar design filled with water would support a column of water how high at a pressure of 1 atmosphere?

• A) more than ten times h
• B) about 1.36 h
• C) less than one tenth h
• D) the same height h

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Definitions:

Peptidases

Proteins that catalyze the conversion of peptides to amino acids by cutting the bonds linking amino acids together.

Proteins

Large, complex molecules that play many critical roles in the body, including catalyzing metabolic reactions, DNA replication, and transporting molecules.

Nucleases

Enzymes that break down nucleic acids by cleaving the phosphodiester bonds between nucleotides.

Nucleotides

Organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA, consisting of a base (adenine, thymine, guanine, cytosine, or uracil), a sugar molecule, and one or more phosphate groups.