Physics
Calculate the mass of ice required to lower the temperature of 300 g of water at 40°C to water at 0°C. (Specific latent heat of ice = 336 J g-1, Specific heat capacity of water = 4.2 J g-1 °C-1)
Related Questions
A boy weighing 40 kgf climbs up a stair of 30 steps each 20 cm high in 4 minute and a girl weighing 30 kgf does the same in 3 minutes. Compare :-
(i) The work done by them.
(ii) The power developed by them.
With reference to the terms Mechanical Advantage, Velocity Ratio and efficiency of a machine, name and define the term that will not change for a machine of a given design.
What do you understand by the following statements :
(i) The heat capacity of the body is 60 J K-1.
(ii) The specific heat capacity of lead is 130 J kg-1 K-1
State two factors upon which the heat absorbed by a body depends.