You obtain a mercury barometric reading of 760 mm Hg at 17° C. Using the following factor ta-ble, compute the corrected pressure

° C 740 750 760
17 2.17 2.20 2.23
18 2.29 2.32 2.35
19 2.38 2.41 2.44

a. 223.0 mm Hg
b. 747.7 mm Hg
c. 757.8 mm Hg
d. 762.3 mm Hg

ANS: C
The U.S. Weather Bureau provides temperature correction factors for barometric readings (see Appendix 1).