WebNov 23, 2024 · a) Some amount of heat is wasted on the kettle. Let an amount m of water be present in the kettle and let E ( m) denote the amount of energy wasted on the kettle to bring the water to a boil. In this case the total amount of energy used is E ( m) + m C Δ T. WebThereafter, the energy requirement for boiling larger volumes of water is nicely predicted by a linear function. Each additional cup requires an additional 25 Watt-hours of energy …
Which is more energy efficient - boiling water using an electric kettle
WebΔ h vap = specific enthalpy of vaporization of water; 540 cal/g. So you will get the amount of energy needed (in cal) to boil a litre of water. To get answer in Joule multiply the … WebFeb 2, 2024 · Our water heating calculator can help you determine both the amount of heat required to raise the temperature of some H 2 O and the time it will take. It considers the … funeral homes in columbus nebraska
How Much Energy Does A Kettle Use? Kettle Energy Consumption …
WebApr 10, 2024 · When water in a kettle is boiling, its temperature remains at 100°C. But the kettle continues to draw electrical energy, measured in Watts, or J·s –1. ... And so the … WebApr 2, 2024 · Using Electricity (KPLC) Assuming that one unit of electricity (1kWh) costs= KSh.15.80 0.0872kWh will cost=15.80×0.0872=Ksh.1.377 So, it costs Ksh.1.377 to boil one litre of water using electricity. Using … WebApr 11, 2024 · To boil the water took 0.037 kilowatt-hours (1kWh is the normal unit by which we are charged for mains electricity) but, by the time the kettle turned off automatically, the total was 0.046 kWh. The first question I asked myself was how much … girls cute backpacks for school