How much heat would need to be removed from a barrel

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Each question below is unique and do not borrow information from a previous part. 

a. Sometimes farmers use barrels of hot water to keep their barns warm in the winter. How much heat would need to be removed from a barrel (42L) for it to go from 90 oC water to 0oC ice?

b. A molecule of nitrojen gas at 300K has how much KE (on avarege)?

Reference no: EM13981475

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