Question

1 point
Which of the following statement is correct?

a-Materials existing as liquids at room temperature have their melting and boiling points lower than that of room temperature.

b- The phenomenon involving the transition of a substance from solid to liquid state is called sublimation

c-To convert a temperature on the Celsius scale to Kelvin scale, subtract 273 from the given temperature

d-The density of ice is less than that of water

Answer 1

Answer:

d

Explanation:

d is the correct explanation

Answer 2

The density of ice is less than that of water is the correct statement.

Explanation:

• The process of a solid becoming a liquid is called melting.
• Temperature is the reason for changing one phase to another.
• When water freezes water molecules form a crystalline structure maintained by hydrogen bonding.
• Solid water or ice is less dense than liquid water.
• Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push further apart which lowers the density.
• The density of ice is 0.9167 to 0.9168 g/cm3 at 0 °C and standard atmospheric pressure.
• The water has a density of 0.9998 to 0.999863 g/cm3 at the same temperature and pressure.

To Learn More...

1.Why ice has lower density than water

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2.Ice has lower density than water.give reasons

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