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1. 2 chunks of metal with heat capacities C1 & C2 are interconnected by a rod of lenght L and cross-sectional are S & fairly low heat conductivity k . the whole system is thermelly insulated from the environment . At a moment t = 0 the temperature difference b/w the two chunks of metal equals ( T)o(o is on foot) assuming the heat capacity of the rod to be negligible, find the temperatrure difference as a function of time.. 2. a constant electric current flows along a uniform wire with cross-sectional radius R & heat conductivity coefficient k . a unit volume of the wire generates a thermal power . find the temperature difference across the wire provided the steady - state temperature at the wire surface is equal to To 3. if one mole of a monoatomic gas( = 5/3) is mixed with one mole of a diatomic gas( =7/5) the value of for the mixture is?? 4. 2 perfect gases at absolute temperatures t1 & t2 are mixed. find the temperature of the mixture if masses of molecules are m1&m2 and the number of molecules in the gases are n1&n2 respectively. 5.three rods of material X and three rods of material Y are connected as shown in fig. All the rods are of identical length and cross-sectional area. If A & E is maintained at 60 & 10 degree C calculate the temperatures of the junctions B,C,D. K for X and Y is 0.92 and 0.46 cal/degree C/s/cm 6.the U -tube of uniform cross-section contains mercury to the depth shoen. The left side of the cube is closed at the top and the right side is connected to a good vaccum pump(i.e. pressure is made 0). the temperature of air in the closed tube is raised from 27 to 111 degree C how far the level of mercury falls on the left side???


1. 2 chunks of metal with heat capacities C1 & C2 are interconnected by a rod of lenght L and cross-sectional are S & fairly low heat conductivity k . the whole system is thermelly insulated from the environment . At a moment t = 0 the temperature difference b/w the two chunks of metal equals ( T)o(o is on foot)
assuming the heat capacity of the rod to be negligible, find the temperatrure difference as a function of time..
 
 
2. a constant electric current flows along a uniform wire with cross-sectional radius R & heat conductivity coefficient k . a unit volume of the wire generates a thermal power  . find the temperature difference across the wire provided the steady - state temperature at the wire surface is equal to To
 
 
 
 3.  if one mole of a monoatomic gas(= 5/3) is mixed with one mole of a diatomic gas(=7/5) the value of  for the mixture is??
 
 
4. 2 perfect gases at absolute temperatures t1 & t2 are  mixed. find the temperature of the mixture if masses of molecules are m1&m2 and the number of molecules in the gases are n1&n2 respectively.
 
 
5.three rods of material X and three rods of material Y are connected as shown in fig. All the rods are of identical length and cross-sectional area. If A & E is maintained at 60 & 10 degree C calculate the temperatures of the junctions B,C,D. K for X and Y  is 0.92 and 0.46 cal/degree C/s/cm
 
 
 
6.the U -tube of uniform cross-section contains mercury to the depth shoen. The left side of the cube is closed at the top and the right side is connected to a good vaccum pump(i.e. pressure is made 0). the temperature of air in the closed tube is raised from 27 to 111 degree C how far the level of mercury falls on the left side???


Grade:10

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