calculate the heat energy required to raise the temperature of 2.2kg H2o(l) from 25c to 98c?
2) 500g of pure Al(s) must be heated from 20c to its melting point. How many joules of energy will be needed?
3)A 200.0 block of H2O(s) is to be heated from -20c to -5c. Determine the heat required?