Which of the following statements are true?
i.One standard atmosphere of pressure is defined as 760 mm Hg.
ii.To two significant figures,one atmosphere and one bar are equal.
iii.Gauge pressure is the pressure above atmospheric pressure.
A)i only
B)i and ii
C)i and iii
D)ii and iii
E)i, ii, and iii

Question

Quizplus · Accepted Answer

i. One standard atmosphere of pressure is indeed defined as 760 mm Hg. ii. To two significant figures, one atmosphere (1 atm = 101.325 kPa) and one bar (1 bar = 100 kPa) are approximately equal. iii. Gauge pressure measures the pressure of a system above atmospheric pressure, not including the atmospheric pressure itself.

Which of the Following Statements Are True