Thermal Propert...

The quantity $$\dfrac{PV}{kT}$$ represents

Let $$C_v$$ and $$C_p$$ denote the molar heat capacities of an ideal gas at constant volume and constant pressure respectively.Which of the following is a universal constant?

The temperature of a body is increased from $$27^oC$$ to $$127^oC$$. The radiation emitted by it increases by a factor of : 

Three rods of the same cross-sectional and made of the same material from the sides of a triangle $$ABC$$ as shown. The points $$A$$ and $$B$$ are maintained at temperature $$T$$ and $$\sqrt 2 T$$ respectively in the steady state. Assuming that only heat conduction takes plane, the temperature at point $$C$$ is:

Three identical rods of same material are joined to from an equilateral triangle. The temperature of end $$A$$ and $$B$$ is maintained constant as $$\sqrt {3}T$$ and $$T$$. The ratio of $$T_C / T_B$$ will be: (Assuming no loss of heat from surfaces) 

Three rods of identical cross-sectional area and made from the same material form the sides of an equilateral triangle. The point $$A$$ and $$B$$ are maintained at $$T$$ and $$2T$$ respectively. In steady state temperature of point $$C$$ is $$T_c$$. ( Assuming only heat conduction takes place.) The value of $$T_c$$ is 

Consider two rods of same length and different specific heats ($$s_1$$ and $$s_2$$), conductivities $$K_1$$ and $$K_2$$ and areas of cross section ($$A_1$$ and $$A_2$$) and both having temperature $$T_1$$ and $$T_2$$ at their ends. If the rate of heat loss due to conduction is equal, then

At temperature TK, the pressure of 4.0 g argon in a bulb is P. the bulb is put in a bath having temperature higher by 50 K than the first one. 0.8 g of argon gas had to be removed to maintained original pressure .The temperature T is equal to :

Heat is added to an ideal gas and the gas expands. In such a process the temperature: 

The temperature of end $$A$$ of a rod us maintained at $$0^oC$$. The temperature of end $$B$$ is changing slowly such that the rod may be considered in steady state at all time and is given by $$T_B $$ = $$\alpha T$$ ; where $$\alpha$$ is positive constant and $$t$$ is time. Temperature of point $$C$$, at a distance $$x$$ from end $$A$$, at any time is ____.