ekambar

ekambar

Albany State University (GA), Biology and Chemistry, Chemistry
247
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Questions
Barometers and open-tube manometers are two instruments that are used to measure pressure.
" A. Both measure gauge pressure B. Both measure absolute pressure C. Barometers measure gauge pressure and manometers measure absolute pressure D...
To obtain the absolute pressure from the gauge pressure:
" A. subtract atmospheric pressure B. add atmospheric pressure C. subtract 273 D. add 273 E. convert to N/m2"
Mercury is a convenient liquid to use in a barometer because:
" A. it is a metal B. it has a high boiling point C. it expands little with temperature D. it has a high density E. it looks silvery"
1Pa is:
" A. 1N/m B. 1m/N C. 1kg/m·s D. 1kg/m·s2 E. 1N/m·s"
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