One kilowatt hour = one kilowatt hour = 1000 watts * 3600 seconds = 3.6 * 10^6J
Specific heat of water: 4.2*10^3J/(kg·℃ )
< p >Temperature difference: 80 degreesm=3.6*10^6J/[4.2*10^3J/(kg·℃)*80℃]= 10.7kg
Boil 10.7kg of water.
One kilowatt hour of electricity is equal to 3,600 seconds * 1,000 watts = 3,600,000 joules.
The heat capacity (specific heat) of water is 4.16 joules/g*degree.
100 liters of water means that 100,000 grams of water requires 416,000 joules to heat one degree, which is 416,000/3600000 = 0.115555556 kilowatt hours of electricity. But here, it is about the complete consideration of the conversion of electrical energy into thermal energy. It's actually impossible.
Temperature (temperature) is a physical quantity which expresses the degree of hot or cold of an object. Under the microscope, it is the intensity of thermal movement of the molecules of an object. Temperature cannot be measurede only indirectly through certain characteristics of an object that change with temperature, and the scale used to measure the temperature value of an object is called temperature scale.
It specifies the starting point of the temperature reading (zero point) and the base unit for measuring the temperature. The SI unit is the thermodynamic temperature scale (K). Other temperature scales used more internationally include the Fahrenheit scale (°F), the Celsius scale (°C), and the International Practical Temperature Scale.
From the point of view of molecular kinetics theory, temperature is a symbol for the average kinetic energy of an object's molecules. Temperature is the collective expression of the thermal motion of a large number of molecules and has statistical significance. For individual molecules, temperature has no meaning. Degree of hot or cold measured on one of plseveral arbitrary scales based on an observable phenomenon (like the expansion of a column of mercury).