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A 250 litre boiler is heated from 20 degrees celcius to 97 degreescelcius using coal . Use the heat value of coal as 30 MJ/kg and the specific heat value for water as 4.187kJ/kg.K . The installationof the system is only 86% effective. Determinethe amount of coal to be used.

A 250 Litre Boiler Is Heated From 20 Degrees Celcius To 97 Degreescelcius Using Coal Use The Heat Value Of Coal As 30 MJkg And The Specific Heat Value For Water class=

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