One of the margin notes in Chapter 12 mentions that B’ is almost always negative. When would B’ be a positive value?
A. When the repulsive interactions in a system outweigh the attractive interactions.
B. When the system approaches the ideal gas state.
C. For systems that show strong hydrogen bonding.
D. B’ can never be a positive value.
E. None of the above.
A. Correct. When repulsive forces outweigh attractive forces (such as when the system is at very high pressure), B’ can be a positive value.
B. Incorrect. As the system approaches the ideal gas state, the molecules are far apart and the attractive interactions will outweigh the repulsive interactions.
C. Incorrect. Hydrogen bonding is an attractive interaction, so this would tend to make B’ more negative.
D. Incorrect. B’ can become positive.
E. Incorrect. One of the answers is correct.
You might also like to view...
What should be used to process the wood in pulp mills mechanically?
A) Grinder B) Chipper C) Chemicals D) Digester
A(n) ____________________ is a pure element or compound that allows electricity to flow freely.
Fill in the blank(s) with the appropriate word(s).
Repeat Problem 19-14 with the subgrade Mr values for each month from January through December being 18,000, 18,000, 12,000, 8000, 8000, 9000, 9000, 9000, 9500, 9500, 12,000, and 20,000 lb/in2, respectively. The pavement structure will be exposed to moisture levels approaching saturation for 20% of the time, and it will take about 4 weeks for drainage of water from the pavement. Use untreated sandy gravel with Mr of 15 × 103 lbs/in2 for subbase and untreated granular material with Mr of 28 × 103 lbs/in2 for the base course.
What will be an ideal response?
In a mature horse, a hoof will grow 1/4 - 1/2 inch per month.
Answer the following statement true (T) or false (F)