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March 27, 2015

Homework Help: chemistry

Posted by Alyssa on Friday, September 21, 2012 at 3:26pm.

When 47.5J of heat are added to 13.2 g of liquid, its temperature rises by 1.72 degrees C. What is the heat capacity of the liquid?

A cook wants to heat 1.35kg of water from 32.0 degrees C to 100 degrees C. If he uses combustion of natural gas to heat the water, hou much natural gas will he need to burn? Natural gas produces 49.3kJ of heat per gram. (for the sake of simplicity assume that the transger of heat is 100% efficient.)

Thanks:)

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