A 40.0 mL volume of ethane gas is heated from 25.0 °C to 50.0 °C.If the pressure remains constant,what is the final volume in milliliters?

Question

Quizplus · Accepted Answer

According to the Charles's Law, at constant pressure, the volume of a gas is directly proportional to its temperature in Kelvin. The initial temperature is 25.0 + 273.15 = 298.15 K, and the final temperature is 50.0 + 273.15 = 323.15 K. Thus, the final volume is (40.0 mL)*(323.15 K/298.15 K) = 43.4 mL. Therefore, the best choice is D.

A 400 ML Volume of Ethane Gas Is Heated from 25