A metal block is made from a mixture of 2.4 kg of aluminium 1.6 kg of brass and 0.8 kg of…
Physics · JEE Advanced · NTA Exams — Thermodynamics
A metal block is made from a mixture of 2.4 kg of aluminium 1.6 kg of brass and 0.8 kg of copper. The amount of heat required to raise the temperature of this block from 20°C to 80°C is (specific heats of aluminium, brass and copper are 0.216,0.0917 and 0.0931 cal/kg°C respectively):
- 96.2 cal
- 44.4 cal
- 86.2 cal
- 62.8 cal
Answer
(B) 44.4 cal
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