Heat and Thermal ExpansionHard
Question
A closed cubical bx mode of perfectly insulating has walls of thickness 8 CM and the only way for heat to enter or leave the box or have the box is through two solid metal plug A and B each of cross - sectional area 12cm2 and length 8 cm fixed in the opposite walls of the box as shown in the figure. Outer surface A is kept at 100oC while the outer surface B is kept at 40C. The thermal conductivity of the material of the-lugs is is .0.5 cal-1 cm-1 (oC-1). A source of energy generating 36 cals-1 is enclosed inside the box. The equilibrium temperature of the inner surface f the box (assuming that it is same at all points on the inner surface )is :-
Options
A.38oC
B.57oC
C.76oC
D.85oC
More Heat and Thermal Expansion Questions
One mole of ideal gas undergoes a cyclic process ACBA as shown in figure. Process AC is adiabatic. The temperatures at A...A refrigerator converts 100 g of water at 25oC into ice at - 10oC in one hour and 50 minutes. The quantity of heat remov...Tree closed vessels A, Sb and C at the same temperature T and contain gasses which obey the Maxwellian distribution of v...Cp is always greater than CV due to the that : -...The emissive of a black body at T = 200 K is 100 Watt/m2. Consider a body B of area A = 10m2, coefficient of reflectivit...