A container holds 40.0 mL of nitrogen at 30° C and at a constant pressure. Find its volume if the temperature increases to 80° C?

The correct answer is - 46.60 mL.

Explanation:

To find the volume of the gas at its new increased temperature we need to use Charl Law that shows the direct relationship between Volume and Temperature while Pressure remains constant.

V1 = 40 ml

T1  = 30 degree C + 273 = 303 K

V2  = ?

T2  = 80 degree C + 273 = 353 K

Charl Equation is:

V 1/T 1  =  V 2/ T 2

(V1) * (T2)/ T1= V2

placing value:

40*353/303 = V2

= 14120/303

Vf = 46.60 mL

London dispersion forces

Explanation:

The forces that hold molecules together in the liquid, solid and solution phases are quite weak. They are generally called London dispersion forces. We already know that the electrons in the orbitals of molecules are free to move around.