8 There is one temperature, about 0.01 °C, at which water, water vapour and ice can co-exist in
equilibrium.

Which statement about the properties of the molecules at this temperature is correct?
A Ice molecules are closer to one another than water molecules.
B The mean kinetic energy of water molecules is greater than the mean kinetic energy of ice
molecules.
C Water vapour molecules are less massive than water molecules.
D Water vapour molecules have the same mean speed as both ice and water molecules

Question

8 There is one temperature, about 0.01 °C, at which water, water vapour and ice can co-exist in 
equilibrium. 
 
Which statement about the properties of the molecules at this temperature is correct? 
A Ice molecules are closer to one another than water molecules. 
B The mean kinetic energy of water molecules is greater than the mean kinetic energy of ice 
molecules. 
C Water vapour molecules are less massive than water molecules. 
D Water vapour molecules have the same mean speed as both ice and water molecules

masumanwar · Answer

Triple point at which all three state of matter can exist  for solid inter molecular space is less and intermolecular force is strong and when we raise energy as temperature it becomes liquid where intermolecular space is comparatively larger then in solid and intermolecular space is less and when we apply more energy gas form where inter molecular space is large and intermolecular force is negligible

haseeb96 · Answer

i think  D is the correct answer