13 Consider two identical glasses filled to the same exact l

13. Consider two identical glasses filled to the same exact level, but one is filled with water and the other is filled with solid ice. Which of the following statements is true? a) That volume of ice has a greater density than that volume of liquid water. b) That volume of ice has more total water molecules than that volume of liquid water. c) That volume of ice has fewer total water molecules than that volume of liquid water. d) The water molecules in the ice are connected by hydrogen bonds as well as some covalent bonds. e) There are an equivalent number of water molecules in both glasses.

Solution

Ans.

Option A. Incorrect: Density is an intrinsic property of a substance that remains unaffected by the volume and/ or mass of the substance taken. So, this correlation of volume and density is inappropriate. However, density of ice (0.9169 g/mL at 0⁰C) is lesser than that of water (0.9998 g /mL at 0⁰ C) at same temperature.

Option B. Incorrect: Since density of ice is less than water, it has lesser number of molecules than water of same volume and temperature.

Option C. Correct: Since density of ice is less than water, it has fewer number of molecules than water of same volume and temperature.

Option. D. Incorrect: All water molecules in ice are connected through hydrogen-bonds only, NO covalent bond forms when water freezes into ice.

Option. D. Incorrect: See, B or C