(III) When using a mercury barometer (Section 10–6), thevapor pressure of mercury is usually assumed to be zero.At room temperature mercury’s vapor pressure is about0.0015 mm-Hg. At sea level, the height h of mercury in abarometer is about 760 mm. (a) If the vapor pressure ofmercury is neglected, is the true atmospheric pressuregreater or less than the value read from the barometer?(b) What is the percent error? (c) What is the percent errorif you use a water barometer and ignore water’s saturatedvapor pressure at STP?
(III) When using a mercury barometer (Section 10–6), thevapor pressure of mercury is usually assumed to be zero.At room temperature mercury’s vapor pressure is about0.0015 mm-Hg. At sea level, the height h of mercury in abarometer is about 760 mm. (a) If the vapor pressure ofmercury is neglected, is the true atmospheric pressuregreater or less than the value read from the barometer?(b) What is the percent error? (c) What is the percent errorif you use a water barometer and ignore water’s saturatedvapor pressure at STP?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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(III) When using a mercury barometer (Section 10–6), the
vapor pressure of mercury is usually assumed to be zero.
At room temperature mercury’s vapor pressure is about
0.0015 mm-Hg. At sea level, the height h of mercury in a
barometer is about 760 mm. (a) If the vapor pressure of
mercury is neglected, is the true atmospheric pressure
greater or less than the value read from the barometer?
(b) What is the percent error? (c) What is the percent error
if you use a water barometer and ignore water’s saturated
vapor pressure at STP?
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