Question

● PHYSICS - 【HEAT】 ●

◆ 1) Volume of water in the temperature range from 0℃ to 4℃
(a) increases
(b) decreases
(c) remains the same
(d) may either increase or decrease

◆ 2) The coefficient of expansion of water in the range 0℃ to 4℃ isHi good morning
(a) zero
(b) negative
(c) positive
(d) infinity

◆ 3) Due to the special behaviour of water , lakes and ponds freeze
(a) first at the bottom
(b) first in the middle layer
(c) first at their surface
(d) anywhere

◆ 4) The amount of heat required to raise the temperature of a body depends on
(a) the mass only
(b) the temperature
(c) the specific heat only
(d) all the three of them​

Answer 1

· Interestingly, the coefficient of thermal expansion of water is not constant over the temperature range 0°C to 100°C at one atmosphere of ...