How many joules of energy are released when 45.0 g of water cools from 18.0^º C to 7.0^º C? A)495 J B)791 J C)2860 J D)2070 J

Name: How many joules of energy are released when 45.0 g of water cools from 18.0 º C to 7.0 º C? A)495 J B)791 J C)2860 J D)2070 J
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Quizplus · Accepted Answer

The energy released can be calculated using the formula: q = mcΔT, where m = 45.0 g, c = 4.18 J/g°C (specific heat capacity of water), and ΔT = 18.0°C - 7.0°C = 11.0°C. Thus, q = 45.0 g * 4.18 J/g°C * 11.0°C = 2070 J.

How Many Joules of Energy Are Released When 45