Which would you expect to be more viscous, a polymer made of long molecular strands or one made of short molecular strands? Why?

A) short molecular strands because of a greater density
B) long molecular strands because they tend to tangle among themselves
C) short molecular strands because their ends are typically polar
D) long molecular strands because of a greater molecular mass


Answer: B

Physics & Space Science

You might also like to view...

A lithium-sodium



Physics & Space Science

Novae always occur in a close binary star system

Indicate whether the statement is true or false

Physics & Space Science

In an energy level transition from the n = 2 state to the n =1 state for a hydrogen atom a photon will be ___________

Fill in the blank(s) with correct word

Physics & Space Science

An astronaut in a rocket moving with a speed v = 0.6c relative to Earth performs a collision experiment with two small steel balls and concludes the both momentum and energy are conserved. What would an Earth observer conclude?

A. only momentum is conserved B. only energy is conserved C. neither energy or momentum is conserved D. both energy and momentum are conserved

Physics & Space Science