How is heat loss reduced in

0 votes

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

How is heat loss reduced in Calorimeter?

Please log in or register to answer this question.

A cylinder of radius R made of a material of thermal conductivity K1 is surrounded by a cylindrical shell of inner radius R and other radius 2R made of material of thermal conductivity K2. The 2 ends of combined system are maintained at two different temperatures. There is no loss of heat across the clinical surface and the system is in steady state calculate the effective thermal conductivity of the
A 50g lead bullet, specific heat `0.02 cal |g | '^C` is initially at `30^oC`. It is fixed vertically upward with a speed of `840m |s` and on returning to the starting level strikes a cake of ice at `0^oC`. How much ice is melted? Assume that all energy is spent in melting ice
A gas can have any value of specific heat depending upon how heating is carried out.
A layer of ice 10cm thick is formed on a pond. The temperature of air is `– 10^oC`. Calculate how long it will take for the thickness of ice to increase by 1mm. Density of ice` = 1g|cm^3`; Thermal conductivity of ice `= 0.005Cal|s|cm|^oC`; Latent heat of ice `= 80Cal|g`
If half mole of helium is contained in a container at S. T. P. How much heat energy is needed to double the pressure of the gas, keeping the volume of the gas constant? Given specific heat of gas `= 3J | g