The changes in the sleep cycle of a graduate student due to the pandemic causes him to become rather careless. One day, he forgets to turn off the cylindrical electric heater in a chemical laboratory after he is done using it to prepare an aqueous glucose solution. The temperature in the laboratory is 22 °C, and the energy transfer to the heater is 350 W. The diameter of the heater is 20 cm. Determine the surface temperature of the heater. Will this temperature of the heater change over time? Why, or why not? If the temperature of the heater does not change over time, determine the value of this temperature. If the temperature of the heater changes over time, determine the final value of this temperature.
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.
The changes in the sleep cycle of a graduate student due to the
pandemic causes him to become rather careless. One day, he forgets to turn off the cylindrical electric heater in a chemical laboratory after he is done using it to prepare an aqueous glucose solution. The temperature in the laboratory is 22 °C, and the energy transfer to the heater is 350 W. The diameter of the heater is 20 cm. Determine the surface temperature of the heater. Will this temperature of the heater change over time? Why, or why not? If the temperature of the heater does not change over time, determine the value of this temperature. If the temperature of the heater changes over time, determine the final value of this temperature.
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