Advertisements
Advertisements
प्रश्न
Explain, Why is it advisabile to pour cold water over burns, caused on human body, by hot solids?
Advertisements
उत्तर
Water has the highest specific heat capacity of 4.2 Jg-1°C-1. Thus, it can extract large amount of heat energy rapidly from the site of burn and hence gives a lot of relief.
संबंधित प्रश्न
State two factors upon which the heat absorbed by a body depends
A mass m1 of a substance of specific heat capacity c1 at temperature t1 is mixed with a mass m2 of other substance of specific heat capacity c2 at a lower temperature t2. Deduce the expression for the temperature t of the mixture. State the assumption made, if any.
Name three fossil fuels that emit carbon dioxide into the atmosphere ?
What is meant by global warming?
What is carbon tax?
A burner raises the temperature of 360 g of water from 40°C to 100°C in 5 minutes. Calculate the rate of heat supplied by the burner.
What are the factors on which the quantity of heat given to a body depends?
Water falls from a height of 50 m. Calculate the rise in the temperature of water when it strikes the bottom.
(g = 10 ms-2; Specific heat capacity of water = 4200 J / kg°C)
From the options given below the specific heat of _______ is maximum.
