Which Molecules of the Following Gases Will Have the Greatest

question 61

Multiple Choice

Which molecules of the following gases will have the greatest root mean square speed?

• A) Nitrogen at 1 atm and 273 K
• B) All the molecules have the same root mean square speed.
• C) Hydrogen at 0.5 atm and 273 K
• D) Argon at 1 atm and 273 K
• E) Helium at 0.1 atm and 273 K

---

Definitions:

Phenotypic Similarity

The degree to which two or more organisms resemble each other in their observable characteristics, due to genetic or environmental influences.

Monozygotic Twins

Twins who are genetically identical as they are formed from one fertilized egg that splits and develops into two embryos.

Natural Selection

A fundamental mechanism of evolution, whereby individuals with characteristics suited to their environment are more likely to survive and reproduce.

Charles Darwin

A 19th-century naturalist known for his theory of evolution and natural selection as mechanisms of speciation.