Question

A sample of neon gas at 50.°C and a volume of 2.5 L is cooled to 25°C. What is the new volume?

2.3 L
2.7 L
5.0 L
32.3L

Answer 1

Answer: 2.3 L

Explanation:

Assuming pressure is constant, the formula: V / T = V / T can be used.

However, all temperatures must first be converted to Kelvin by adding 273:

(50 + 273) = 323K ; (25 + 273) = 298K

Now, plug in: 2.5 L / 323 K = V / 298 K → V = 2.3 L :)