The rates of cooling of two different liquids put in exactly similar calorimeters and kept in identical surroundings are the same if
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The loss of weight of a solid when immersed in a liquid at 0C is W_(0) and at t degree C is ‘W’. If cubical coefficient of expansion of the solid and the liquid are gamma_(s) and gamma_(1) then W is equal to
06
Sep
The loss of weight of a solid when immersed in a liquid at 0C is W_(0) and at t degree C is ‘W’. If cubical coefficient of expansion of the solid and the liquid are gamma_(s) and gamma_(1) then W is equal to The rates of cooling of two different liquids put in exactly similar [...]
Ice at 0C is added to 200g of water initially at 70C in a vacuum flask. When 50 g of ice has been added and has all melted the temperature of the flask and contents is 40C . When a further 80 g of ice has been added and has all melted, the temperature of the whole is 10C . Neglecting heat to surrounding the latent heat of fusion of ice.
06
Sep
Ice at 0C is added to 200g of water initially at 70C in a vacuum flask. When 50 g of ice has been added and has all melted the temperature of the flask and contents is 40C . When a further 80 g of ice has been added and has all melted, the temperature of [...]
A liquid of density 0.85 g/cm^(3) flows through a calorimeter at the rate of 8.0 cm^(2)/s. Heat is added by means of a 250 W electric heating coil and a temperature difference of 15 C is established in steady state conditions between the inflow and the outflow points of the liquid. The specific heat for the liquid will be
06
Sep
A liquid of density 0.85 g/cm^(3) flows through a calorimeter at the rate of 8.0 cm^(2)/s. Heat is added by means of a 250 W electric heating coil and a temperature difference of 15 C is established in steady state conditions between the inflow and the outflow points of the liquid. The specific heat for [...]
A mass m of lead shot is placed at the bottom of a vertical cardboard cylinder that is 1.5 m long and closed at both ends. The cylinder is suddenly inverted so that the shot falls 1.5 m. If this process is repeated quickly 100 times, assuming no heat is dissipated or lost, the temperature of the shot will increase by (specific heat of lead=0.03 cal/gC)
06
Sep
A mass m of lead shot is placed at the bottom of a vertical cardboard cylinder that is 1.5 m long and closed at both ends. The cylinder is suddenly inverted so that the shot falls 1.5 m. If this process is repeated quickly 100 times, assuming no heat is dissipated or lost, the temperature [...]
An iron rocket fragment initially at -100 C enters the earth’s atmosphere almost horizontally and quickly fuses completely in atmospheric friction. Specific heat of iron is 0.11 kcal/kg C its melting point is 1535 C and the latent heat of fusion is 3 kcals//kg. The minimum velocity with which the fragment must have entered the atmosphere is
06
Sep
An iron rocket fragment initially at -100 C enters the earth’s atmosphere almost horizontally and quickly fuses completely in atmospheric friction. Specific heat of iron is 0.11 kcal/kg C its melting point is 1535 C and the latent heat of fusion is 3 kcals//kg. The minimum velocity with which the fragment must have entered the [...]
The rates of cooling of two different liquids put in exactly similar calorimeters and kept in identical surroundings are the same if
06
Sep
The rates of cooling of two different liquids put in exactly similar calorimeters and kept in identical surroundings are the same if The rates of cooling of two different liquids put in exactly similar calorimeters and kept in identical surroundings are the same if September 6, 2021 Category: Cengage JEE Mains Physics by B.M Sharma [...]