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10gm of steam 100°c are blown on the surface of 90gm water at 0°c contained in a calorimeter of water 10gm.all steams are
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A rotating uniform-density disk of radius 0.7 m is mounted in the vertical plane. The axle is held up by supports that are not
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0.5×27.9×ln(273÷261)+(80×27.9/273)+ln(388/273)+(540/388)=10.54cal/k
