Heat and Thermal ExpansionMedium
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
A sample of gas follows process represented by PV2 = constant. Bulk modulus for this process is B, then which the of the...Pressure versus temperature graphs of an ideal gas are as shown in figure. Choose the wrong statement :-(i) (ii) (iii)...A vessel is partitioned two equal halves by a fixed diathermy separator. Two different ideal gasses are filled in left (...A steel scale is to be prepared such that the millimeter intervals are to be accurate4 within 6 × 10-5 mm.The maxim...The figure shows two paths for the change of state of a gas from A to B. The ratio of molar heat capacities in path 1 an...