Mercury is suitable as a barometric fluid because it?
A
expands uniformly
B
is opaque
C
is several times denser than water
D
is a good conductor of heat
Verified Correct Answer: C.
Physical Principles & Numerical Solution
Mercury is employed in the barometer because its density is sufficiently high for a relative short column to be obtained.
Source: Myschool Past Questions Archive (Record #28499)