A metal of mass 1 kg at constant atmospheric pressure and at initial temperature `20^@C` is given a heat of 20000J. Find the following
(a) change in temperature,
(b) work done and
(c) change in internal energy.
(Given, specific heat `=400J//kg-^@C`, cofficient of cubical expansion, `gamma=9xx10^-5//^@C`, density `rho=9000kg//m^3`, atmospheric pressure `=10^5N//m^2`)

A cylinder of mass 1kg is given heat of 20,000J at atmospheric pressure. If initially the temperature of cylinder is 20^@C , find (a) final temperature of the cylinder. (b) work done by the cylinder. (c) change in internal energy of the cylinder (Given that specific heat of cylinder= 400Jkg^-1^@C^-1, Atmospheric pressure= 10^5N//m^2 and Density of cylinder= 9000kg//m^3 )

What is the rice in temperature of 5 kg of water if it is given 84,000 J heat energy? Specific heat capacity of water =4200 J kg ^-1^@C^-1 .

Calculate R.M.S. velocity of helium at temperature 0^@C . (density of helium is 0.1785 kg//m^3 , atmospheric pressure = 1.013 xx K^5N//m^2 ).

A diatomic gas is heated at constant pressure. If 105J of heat is given to the gas, find (a) the change in internal energy of the gas (b) the work done by the gas.

200 g of water is heated from 40^(@)C "to" 60^(@)C . Ignoring the slight expansion of water , the change in its internal energy is closed to (Given specific heat of water = 4184 J//kg//K ):

200 g of water is heated from 40^(@)C "to" 60^(@)C . Ignoring the slight expansion of water , the change in its internal energy is closed to (Given specific heat of water = 4184 J//kg//K ):

200 g of water is heated from 40^(@)C "to" 60^(@)C . Ignoring the slight expansion of water , the change in its internal energy is closed to (Given specific heat of water = 4184 J//kg//K ):

A 1.0 kg bar of copper is heated at atmospheric pressure (1.01xx10^5N//m^2) . If its temperature increases from 20^@C to 20^@C , calculate the change in its internal energy. alpha=7.0xx10^-6//^@C , rho=8.92xx10^3kg//m^3 and c=387J//kg-^@C .