it possible to have a negative delta T..
When the pot of boiling water cools, energy leaves the system, so the water is cooler than before(negative delta t). So, when delta t is negative, q is negative, and the process is exothermic. When delta t is positive, q is positive, and the process is endothermic.
When the pot of boiling water cools, energy leaves the system, so the water is cooler than before(negative delta t). So, when delta t is negative, q is negative, and the process is exothermic. When delta t is positive, q is positive, and the process is endothermic.
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