Molecular Speeds: What Is the Average Translational Kinetic Energy Per

question 19

Multiple Choice

Molecular speeds: What is the average translational kinetic energy per molecule of an ideal gas at a temperature of 300 K? The Boltzmann constant is 1.38 × 10^-23 J/K.

• A) 1.7 × 10^-21 J
• B) 8.3 × 10^-21 J
• C) 6.2 × 10^-21 J
• D) 2.1 × 10^-21 J
• E) 4.1 × 10^-21 J

---

Definitions:

Immediately

Without delay; happening right at the moment or very soon after.

Bid

An acronym in medical prescribing that stands for "bis in die" which means "twice a day".

Tid

An acronym in medical prescriptions standing for "ter in die," which means three times a day.

Prn

An abbreviation for "pro re nata," a Latin phrase meaning “as the situation demands” used in healthcare to instruct that medication should be taken as needed.