A Gas of Helium Atoms (Each of Mass 6

question 22

Multiple Choice

A gas of helium atoms (each of mass 6.65 × 10^-27 kg) are at room temperature of 20.0°C.What is the de Broglie wavelength of the helium atoms that are moving at the root-mean-square speed? (h = 6.626 × 10^-34 J ∙ s,the Boltzmann constant is 1.38 × 10^-23 J/K)

• A)5.22 × 10^-11 m
• B)7.38 × 10^-11 m
• C)1.04 × 10^-10 m
• D)2.82 × 10^-10 m
• E)3.99 × 10^-10 m

---

Definitions:

Deadweight Loss

The loss of economic efficiency that occurs when the equilibrium for a good or service is not achieved due to market distortions.

Subsidy Payments

Financial support given by a government or organization to lower the price of a product or service or to support a business or economic sector.

Quantity Supplied

Quantity supplied refers to the total amount of a product or service that producers are willing and able to sell at a given price over a specified period.

Per Unit Tax

A tax levied on goods that is fixed in amount for each unit produced or sold.