Sudarshan bails a certain quantity of "First Grade" petrol, to be stored safely till the end of March 2011. Raghman, without the consent of Sudarshan mixes the first grade petrol with his own "Second Grade" petrol on 1st April, 2011, when Sudarshan asked Raghman for his first grade petrol Raghman tells him to take the bailed quantity of petrol out of the mixed petrol. Sudarshan refused to take the mixed petrol and instead claims the prices of the "First Grade" petrol, which is higher than "Second Grade". Raghman refuses to compensate Sudarshan for the above on the ground of impossibility of performance.

Acommercial grade cubical freezer, 4 m on a side, has a composite wall consisting of an exterior sheet of 5.0-mm thick plain carbon steel (kst= 60.5 w/m k), an intermediate layer of 100-mm thick polyurethane insulation (kins 0.02 w/m k), and an inner sheet of 5.0- mm thick aluminium alloy (kal polyurethane insulation and both metallic sheets are each characterized by a thermal contact resistance of r 2.5 x 104 m2 k/w. (a) what is the steady-state cooling load that must be maintained by the refrigerator under conditions for which the outer and inner surface temperatures are 25°c and -5°c, respectively? (b) for power saving purpose, which wall material should be increased/reduced in. thickness in order to reduce 50% of the cooling load found in part (a)? redesign the thickness of the proposed material. 177 w/m-k). adhesive interfaces between the q=575.93 w