Boiling water was placed in a freezer maintained at a temperature of -15 degrees Celsius to have the water just starting to freeze. Fifteen minutes after the said boiling water was placed om the freezer, the water was measured to be halfway to the goal in terms of the temperature. How many more minutes should the water be left in the freezer just for the water to freeze? Assume the system obeys Newton’s law of cooling and the surrounding temperature of the room did not 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.
- Boiling water was placed in a freezer maintained at a temperature of -15 degrees Celsius to have the water just starting to freeze. Fifteen minutes after the said boiling water was placed om the freezer, the water was measured to be halfway to the goal in terms of the temperature. How many more minutes should the water be left in the freezer just for the water to freeze? Assume the system obeys Newton’s law of cooling and the surrounding temperature of the room did not change
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