InterviewSolution
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InterviewSolution
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PROBLEM 01 - 0003: The bar is a unit ofpressure defined as 1.00 x 10°dynes/cm, or 1.00 x105 N/m2. What is theequivalent of thebar in units of mmHg?9 |
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Answer» This is a matter of scale conversions. In a problem dealing withpressure, it is reasonable to use a scale of One AtmosphericPressure = 1.013 × 105 N/m2 = 760 mm Hg for conversions. Note theconvenience in appropriate scale choice. If an inappropriate scale hadbeen chosen, another conversion to some other scale would be neededbefore converting to the desired scale. Since 1.013 × 105 N/m2 isequivalent to 760 mm Hg, therefore 1.00 × 105 N/m2 will be equivalent to [(1.00 × 105 N/m2) / (1.013 × 105 N/m2)] × 760 mm Hg = 750 mm Hg. |
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