20 mL of a gas at 200K is heated until the new volume is 55 mL. What is the final temperature of the gas? answer options:
4.0 K
5.5 K
400K
550 K

550 K

Explanation:

Given the following data;

Original Volume, V1 = 20mL

Original Temperature, T1 = 200K

New Temperature, V2 = 55mL

To find new temperature T2, we would use Charles' law.

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles is given by;

Making T2 the subject of formula, we have;

Substituting into the equation;

Therefore, the new temperature is 550K.

Sample Response: When the fluid cools, the kinetic energy of the molecules decreases. This causes the molecules to slow down and move closer together. Since the molecules are closer together, the density of the fluid increases and the fluid sinks.

What did you include in your response? Check all that apply.