Chapter 13 – Thermal Expansion, Calorimetry and Transmission of Heat
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 13 - Thermal Expansion, Calorimetry and Transmission of Heat
A vessel is partly filled with a liquid. Coefficients of cubical expansion of material of the vessel and liquid are γV and γL respectively. If the system is heated, then volume unoccupied by the liquid will necessarily
06
Sep
A vessel is partly filled with a liquid. Coefficients of cubical expansion of material of the vessel and liquid are γV and γL respectively. If the system is heated, then volume unoccupied by the liquid will necessarily A vessel is partly filled with a liquid. Coefficients of cubical expansion of material of the vessel and [...]
The earth receives on its surface radiation from the sun at the rate of 1400 W/m^2. The distance of the centre of the sun from the surface of the earth is 1.5 * 10^11 m and the radius of the sun is 7×10^8m. Treating the sun as a black body, it follows from the above data that its surface temperature is
06
Sep
The earth receives on its surface radiation from the sun at the rate of 1400 W/m^2. The distance of the centre of the sun from the surface of the earth is 1.5 * 10^11 m and the radius of the sun is 7×10^8m. Treating the sun as a black body, it follows from the above [...]
A steel ball of mass 0.1 kg falls freely from a height of 10 m and bounces to a height of 5.4 m from the ground. If the dissipated energy in this process is absorbed by the ball, the rise in its temperature is (specific heat of steel =460 K/kg/C,g=10 m/s^(2))
06
Sep
A steel ball of mass 0.1 kg falls freely from a height of 10 m and bounces to a height of 5.4 m from the ground. If the dissipated energy in this process is absorbed by the ball, the rise in its temperature is (specific heat of steel =460 K/kg/C,g=10 m/s^(2)) A steel ball of [...]
10 gm of ice at -20°c is kept into a calorimeter containing 10 gm of water at 10°c, the specific heat of water in twice that of ice. When equilibrium is reached, the calorimeter will contain
06
Sep
10 gm of ice at -20°c is kept into a calorimeter containing 10 gm of water at 10°c, the specific heat of water in twice that of ice. When equilibrium is reached, the calorimeter will contain 10 gm of ice at -20°c is kept into a calorimeter containing 10 gm of water at 10°c the [...]
A 2 g bullet moving with a velocity of 200 m/s is brought to a sudden stoppage by an obstacle. The total heat produced goes to the bullet. If the specific heat of the bullet is 0.03 cal/gC, the rise in its temperature will be
06
Sep
A 2 g bullet moving with a velocity of 200 m/s is brought to a sudden stoppage by an obstacle. The total heat produced goes to the bullet. If the specific heat of the bullet is 0.03 cal/gC, the rise in its temperature will be A 2 g bullet moving with a velocity of 200 [...]
250 g of water and equal volume of alcohol of mass 200 g are replaced successively in the same colorimeter and cool from 606C to 55C in 130 s and 67 s, respectively. If the water equivalent of the calorimeter is 10 g, then the specific heat of alcohol in cal/gC is
06
Sep
250 g of water and equal volume of alcohol of mass 200 g are replaced successively in the same colorimeter and cool from 606C to 55C in 130 s and 67 s, respectively. If the water equivalent of the calorimeter is 10 g, then the specific heat of alcohol in cal/gC is 250 g of [...]
A one liter flask contains some mercury. It is found that at different temperatures, then volume of air inside the flask remains the same. What is the volume of mercury in the flask? If co-efficient of linear expansion of glass is = 9 × 10^-6 /C while of volume expansion of mercury is = 1.8 × 10^-4 /C.
06
Sep
A one liter flask contains some mercury. It is found that at different temperatures, then volume of air inside the flask remains the same. What is the volume of mercury in the flask? If co-efficient of linear expansion of glass is = 9 × 10^-6 /C while of volume expansion of mercury is = 1.8 [...]
One end of a copper rod of uniform cross-section and of length 3.1 m is kept in contact with ice and the other end with water at 100 C. At what point along its length should a temperature of 200° C be maintained so that in steady state, the mass of ice melting be equal to that of the steam produced in the same interval of time. Assume that the whole system is insulated from the surroundings. Latent heat of fusion of ice and vaporization of water are 80 cal/gm and 540 cal/gm respectively
06
Sep
One end of a copper rod of uniform cross-section and of length 3.1 m is kept in contact with ice and the other end with water at 100 C. At what point along its length should a temperature of 200° C be maintained so that in steady state, the mass of ice melting be equal [...]
An aluminium measuring rod, which is correct at 5∘C measures the length of line as 80 cm at 45∘C- If thermal coefficient of linear expansion of aluminium is 2.50 x 10^-5/ C . The correct length of the line is
06
Sep
An aluminium measuring rod, which is correct at 5∘C measures the length of line as 80 cm at 45∘C- If thermal coefficient of linear expansion of aluminium is 2.50 x 10^-5/ C . The correct length of the line is An aluminium measuring rod which is correct at 5∘C measures the length of line as [...]
A glass flask is filled up to a mark with 50 cc of mercury at 18C. If the flask and contents are heated to 38C, how mech mercury will be above the mark (alpha for glass is 9 x 10^(-6)/C and coefficient of real expansion of mercury is 180 x 10^(-6)/C)?
06
Sep
A glass flask is filled up to a mark with 50 cc of mercury at 18C. If the flask and contents are heated to 38C, how mech mercury will be above the mark (alpha for glass is 9 x 10^(-6)/C and coefficient of real expansion of mercury is 180 x 10^(-6)/C)? A glass flask is [...]