A block of ice of 10 gm at - 10°C is slowly heated and converted to steam at 100°C, calculate amount of heat required to change ice at -10°C to steam at 100°C (specific heat ofice is 0.5 cal/gm°C and latent heat of ice 80 cal/gm and latent heat of vaporization of water is 540 cal/gm and Sw=1cal/gm/°C)​

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.