Question

The density that is determined by displacement of helium is known as _____ density.

• A. True
• B. Intrinsic
• C. Granule
• D. Bulk

Hint:

Helium gas is preferred for true density determination as it diffuses into fine pores and gives precise solid volume.

Answer 1

The Correct Option is A

True density is measured by gas displacement methods, typically using helium pycnometry, because helium can penetrate even the smallest pores, giving an accurate measurement of the volume occupied by solid material only.