Q. Anomalous expansion of water can be rightly explained from which of the following properties of water?
(A) The specific heat capacity of water is 4.2J/g C
(B) Electrolysis of water yields oxygen and hydrogen
(C) Pure water has a maximum density of 1 g/cm3 at 4 C
(D) Water freezes at 0 C and boils at 100C
Q. Convert 212F into Kelvin scale.
(A) 473 K (B) 373 K (C) 273 K (D) 173 K
Dear Student,
Q18. The Anomalous expansion of Water can be rightly explained by the property of density of water at 4oC i.e. 1 gm/cm3.
As, water between 0oC and 4oC the volume of given amount of water decreases with increase in temperature from 0oC to 4oC, and beyond 4oC, the volume of given amount of water increases with rise in temperature.
Therefore, option (C) is correct.
Q19. TK (Kelvin temperature) = TF (Fahrenheit temperature + 459.67) x 5/9
Hope this information clears your doubts about the topic.
Keep asking!!
Regards
Q18. The Anomalous expansion of Water can be rightly explained by the property of density of water at 4oC i.e. 1 gm/cm3.
As, water between 0oC and 4oC the volume of given amount of water decreases with increase in temperature from 0oC to 4oC, and beyond 4oC, the volume of given amount of water increases with rise in temperature.
Therefore, option (C) is correct.
Q19. TK (Kelvin temperature) = TF (Fahrenheit temperature + 459.67) x 5/9
TK = (212 + 459.67) x 5/9
TK = 373 K
TK = 373 K
Therefore, option (B) is correct
Hope this information clears your doubts about the topic.
Keep asking!!
Regards