What Is the Internal Energy of 45 Moles of Neon

question 77

Multiple Choice

What is the internal energy of 45 moles of Neon gas (molecular mass = 20 u) at 24°C? (R = 8.31 J/mol⋅K)

• A) 1.7 × 10⁵ J
• B) 7.4 × 10⁵ J
• C) 1.9 × 10³ J
• D) ​1.3 × 10⁴ J
• E) ​It depends on the container size,which is not given.

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Definitions:

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, quantitatively defined as the percentage change in quantity demanded divided by the percentage change in price.

Long Run

A period in which all factors of production and costs are variable, allowing firms to adjust all inputs as needed.

Perfectly Elastic

A demand situation where the quantity demanded changes infinitely in response to any change in price.

Equilibrium Quantity

The quantity of goods or services supplied and demanded at the equilibrium price, where demand and supply are equal.