The Equilibrium Constant K_c for the Reaction Is 49 $\degree$

question 80

Multiple Choice

The equilibrium constant K_c for the reaction is 49 at 230 $\degree$ C. If 0.70 mol of PCl₃ is added to 0.70 mol of Cl₂ in a 1.00-L reaction vessel at 230 $\degree$ C, what is the concentration of PCl₃ when equilibrium has been established?

• A) 0.049 M
• B) 0.11 M
• C) 0.30 M
• D) 0.59 M
• E) 0.83 M

---

Definitions:

Slope

A measure of the steepness or incline of a line, often calculated as the ratio of the vertical change to the horizontal change between two points on the line.

Corn

A staple grain widely cultivated for food, animal feed, and as a raw material in industry.

Rice

A staple grain consumed worldwide, known for its versatility in numerous culinary traditions and its importance in feeding a significant portion of the global population.

Bushels

A unit of volume that is used to measure quantities of grain, fruit, and other dry commodities, varying in exact measure by product and country.