How much energy (in Joules) is needed to raise the temperature of 2.03 g of mercury from 8.1C to 77.4C?

2. What decrease in temperature will result if 212.0 grams of copper releases 4,080 J of energy?
4. An 83.7 g sample of nickel absorbs 483 J of energy when the temperature increases from 13.8C to 26.8C. What is the specific heat of nickel?
6. A reaction requires 96.7 g of PC, be raised from 31.7C to 69.2C. How much energy, in joules, is required given that the specific heat of PC is 0.874 J/gC?
8. How much energy (in Joules) is released when 890.6 g of iron metal is cooled from 456C to 22C?

Answer rating: 100% (QA)

To calculate the energy required or released in these scenarios we can use the equation Energy Q mas... View the full answer