Which of the following graphs shows the variation in density of water with the temperature in the range from 0 ∘C to 10 ∘C?
Which of the following graphs shows the variation in density of water with the temperature in the range from 0 ∘C to 10 ∘C?
The correct option is C
Water is a polar molecule. There will be a slight positive charge on Hydrogen and negative charge on Oxygen. Due to the polar nature Hydrogen of one molecule is attracted by Oxygen of other molecule and vice versa. A small bond is formed known as Hydrogen bong. This attraction depends on temperature and the higher the temperature more kinetic energy, so more vibrations that leads to breakage of bond occurs.
When water is heated from 0∘C, the density of water first increases from 0∘C to 4∘C and then decreases above 4∘C to 10∘C. On the other hand, on cooling water from 10∘C, the density of water first increases up to 4∘C and then decreases when it is cooled below 4∘C to 0∘C. Thus, the density of water is maximum at 4∘C which is equal to 1 gmcm−3. In the figure, the Y-axis represents Densitygmcm−3, the X-axis represents the temperature T in Celsius.
Water is a polar molecule. There will be a slight positive charge on Hydrogen and negative charge on Oxygen. Due to the polar nature Hydrogen of one molecule is attracted by Oxygen of other molecule and vice versa. A small bond is formed known as Hydrogen bong. This attraction depends on temperature and the higher the temperature more kinetic energy, so more vibrations that leads to breakage of bond occurs.
When water is heated from 0∘C, the density of water first increases from 0∘C to 4∘C and then decreases above 4∘C to 10∘C. On the other hand, on cooling water from 10∘C, the density of water first increases up to 4∘C and then decreases when it is cooled below 4∘C to 0∘C. Thus, the density of water is maximum at 4∘C which is equal to 1 gmcm−3. In the figure, the Y-axis represents Densitygmcm−3, the X-axis represents the temperature T in Celsius.
