Consider the following thermodynamic data at 25C and the normal boiling point of N2O4 is 21.69C.

Calculate S for the vaporization of 2 mol of N2O4. Assume H does not change
with temperature. (7 marks)

Species Hf (kJmol-1)
N2O4(l) -19.50
N2O4(g) 9.16

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

wher is the rest of the question