MTG NEET Physics
2 kg of Ice at – 20° C is mixed with 5 kg of water at 20°C in an insulating vessel having a negligible heat capacity calculate the final mass of water remaining in the container. It is given that the specific heats of water and ice care 1 Kcal/kg per °C and 0.5 Kcal/kg 1°C while the latent heat of fusion of ice is 80 Kcal/kg.
11
Sep
2 kg of Ice at – 20° C is mixed with 5 kg of water at 20°C in an insulating vessel having a negligible heat capacity calculate the final mass of water remaining in the container. It is given that the specific heats of water and ice care 1 Kcal/kg per °C and 0.5 Kcal/kg [...]
Work done in converting 1g of ice at – 10C into steam at 100C is.
11
Sep
Work done in converting 1g of ice at – 10C into steam at 100C is. Work done in converting 1g of ice at - 10C into steam at 100C is. September 11, 2021 Category: Chapter 14 - Thermometry, Expansion and KTG , MTG NEET Physics ,
A solid substance is at 30^∘C. To this substance heat energy is supplied at a constant rate. Then temperature versus time graph is as shown in the figure. The substance is in liquid state for the portion (of the graph)
11
Sep
A solid substance is at 30^∘C. To this substance heat energy is supplied at a constant rate. Then temperature versus time graph is as shown in the figure. The substance is in liquid state for the portion (of the graph) A difference of temperature of 25^∘C is equivalent to a difference of. September 11, 2021 [...]
1 gram of ice is passed into a container having 2 grams of water at 35 C. The equilibrium temperature of the mixture is
11
Sep
1 gram of ice is passed into a container having 2 grams of water at 35 C. The equilibrium temperature of the mixture is 1 gram of ice is passed into a container having 2 grams of water at 35 C. The equilibrium temperature of the mixture is September 11, 2021 Category: Chapter 14 - [...]
Specific heat of aluminium metal 24.4 j/mole K. Express the specific heat in j/kg K.
11
Sep
Specific heat of aluminium metal 24.4 j/mole K. Express the specific heat in j/kg K. Specific heat of aluminium metal 24.4 j/mole K. Express the specific heat in j/kg K. September 11, 2021 Category: Chapter 14 - Thermometry, Expansion and KTG , MTG NEET Physics ,
The coefficient of linear expansion α of the material of a rod of length ℓ 0 varies with absolute temperature as α = aT − bT^2 where a & b are constants. The linear expansion of the rod when heated from T1 to T2 = 2T1 is
11
Sep
The coefficient of linear expansion α of the material of a rod of length ℓ 0 varies with absolute temperature as α = aT − bT^2 where a & b are constants. The linear expansion of the rod when heated from T1 to T2 = 2T1 is A difference of temperature of 25^∘C [...]
A lead bullet strikes against a steel plate with a velocity 200 ms^−1 . If the impact is perfectly inelastic and the heat produced is equally shared between the bullet and the target, then the rise in temperature of the bullet is (Specific heat capacity of lead =125 J kg^−1K^−1 )
11
Sep
A lead bullet strikes against a steel plate with a velocity 200 ms^−1 . If the impact is perfectly inelastic and the heat produced is equally shared between the bullet and the target, then the rise in temperature of the bullet is (Specific heat capacity of lead =125 J kg^−1K^−1 ) A lead bullet strikes [...]
Two rods, one of aluminium and the other made of steel ,having initial length l1+l2. are connected together to form a single rod of length l1+l2. The coefficients of linear expansion for aluminium and steel are αa and αs respectively. if the length of each rod increases by the same amount when their temperature are raised by t∘C, then find the ratio l1/l1+l2
11
Sep
Two rods, one of aluminium and the other made of steel ,having initial length l1+l2. are connected together to form a single rod of length l1+l2. The coefficients of linear expansion for aluminium and steel are αa and αs respectively. if the length of each rod increases by the same amount when their temperature are [...]
Two rods having length l1 , and l2 made of materials with the linear expansion coefficient α 1 and α2 , were soldered together. The equivalent coefficients of linear expansion for the obtained rod :
11
Sep
Two rods having length l1 , and l2 made of materials with the linear expansion coefficient α 1 and α2 , were soldered together. The equivalent coefficients of linear expansion for the obtained rod : and l2 made of materials with the linear expansion coefficient α 1 and α2 Two rods having length l1 [...]
There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are centres of these cavities. On heating the plate, which of the following quantities increase?
11
Sep
There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are centres of these cavities. On heating the plate, which of the following quantities increase? as shown with dimensions. P and Q are centres of these cavities. On heating [...]