1. (a) How much heat transfer is necessary to raise the temperature of a 0.14 -kg piece of ice from -18 °C to 130°C, inc

[answerhappygod]

1 A How Much Heat Transfer Is Necessary To Raise The Temperature Of A 0 14 Kg Piece Of Ice From 18 C To 130 C Inc 1 (119.47 KiB) Viewed 8 times

1. (a) How much heat transfer is necessary to raise the temperature of a 0.14 -kg piece of ice from -18 °C to 130°C, including the 20 kJ/s energy needed for phase changes? Specific heat of ice = 2.090 kJ/kg °C Specific heat of water = 4.186 kJ/kg °C Specific heat of steam = 1.520 kJ/kg °C Heat of fusion of water = 334 kJ/kg Heat of vaporization = 2256 kJ/kg (i) Heat needed to warm ice to 0°C: Q: kJ (ii) Heat needed to melt ice at 0 °C: Q: kJ (iii) Heat required to warm 0 °C water to 100 °C: Q3: kJ (iv) Heat required to vaporize water at 100 °C: kJ Q4 (v) Heat required to warm 100 °C vapor to 130 °C: Q5 kJ Total heat, Q: kJ (b) How much time is required for the entire process, assuming a constant 20.0 kJ/s rate of heat transfer? Total time, t: S