It takes approximately 1000 kJ of energy to completely boil 0.40 kg of water that was initially at 22°C. Select the true statement about this situation. All 1000 kJ of energy used comes from heating the water up to a temperature of 100°C All 1000 kJ of energy used comes from the process of breaking chemical bonds in order for the phase change to occur once the substance is at its boiling point Some energy is used for heating the water up to its boiling point, and the remaining energy used is for breaking the chemical bonds so the phase change can occur Some energy is used for heating the water up to its boiling point, and the remaining energy used is for increasing the kinetic energy of the particles during the phase change
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
It takes approximately 1000 kJ of energy to completely boil 0.40 kg of water that was initially at 22°C. Select the true statement about this situation.
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