What will be the new volume when 128 mL of gas at 20.0°C is heated to 40.0°C while pressure remains unchanged?

Question

Quizplus · Accepted Answer

According to Charles' law, at constant pressure, volume and temperature are directly proportional. Therefore, using the formula V1/T1 = V2/T2, we can calculate the new volume as follows:

V1 = 128 mL
T1 = 20.0°C + 273.15 = 293.15 K
T2 = 40.0°C + 273.15 = 313.15 K

V2 = (V1 x T2) / T1
V2 = (128 mL x 313.15 K) / 293.15 K
V2 = 136.9 mL

Rounding to the nearest whole number, the new volume is 137 mL. Therefore, the best choice is D.

What Will Be the New Volume When 128 ML of Gas