A Rigid Cubic Box, 15 Cm on a Side, Is

question 16

Multiple Choice

A rigid cubic box, 15 cm on a side, is filled with nitrogen gas (N₂) at standard temperature and pressure (0 °C and 1 atm) . If 185 J of heat is added to the box, what is the final temperature of the gas?

• A) 69 °C
• B) 88 °C
• C) 150 °C
• D) 50 °C
• E) 59 °C

---

Definitions:

Efficient Scale

The quantity of output that minimizes average total cost.

Perfectly Competitive

A market structure characterized by a large number of small firms, homogenous products, and free entry and exit.

Monopolistically Competitive

A market structure where many firms sell products that are similar but not identical, leading to competition based on factors other than price.

Economic Profits

Economic profits are the surplus remaining after deducting both explicit and implicit costs from total revenue, reflecting the true profitability of a business.