You have 1.2 l of air in a balloon 175 k. what is the new volume of the balloon when it is heated to 245 k

a) 1.68 l
b) 4.3 l
c) 0.857 l

A) 1.68 L

Explanation:

Charles’ Law states that: at constant pressure, the volume is directly proportional to the temperature of the gas.It can be expressed as: V₁T₂ = V₂T₁,

V₁ = 1.2 L, T₁ = 175.0 K, V₂ = ??? L, T₂ = 245.0 K.

∴ V₂ = V₁T₂/T₁ = (1.2 L)(245.0 K)/(175.0 K) = 1.68 L.

They are soluble.

Explanation:

Cell membrane is one of the cellular structure that separates the internal environment of a cell and its external environment.The main role of the cell membrane is to control the movement of materials in and out of the cells. This is due to its property of semi-permeability, which means not all materials are allowed to leave or enter the cell.Some materials such as water, ions and other small molecules can enter or leave the cell while molecules that are large such as proteins can not enter or leave the cell.