How much energy(44.87g of water from71.5\deg C to115.1\deg C?(Hint: Remember that you need to take into consideration the boiling process)Relevant thermodynamic quantities: Cs(H2O g)=1.87J/g˚C Cs(H2O l)=4.184JgCHvapH...
The scheduling tends not to be linked to actual hot water usage and depends largely on stored thermal energy. Heat losses therefore tend to be greater than if the heater ran without a break. The effect of such a control strategy is thus to worsen the energy loss and in most cases ...
1) How much energy is needed in lifting 5 m3 of water to a height of 20 m and projecting it horizontally at a speed of 10 m/s?What must be the power of an engine capable of performing this amount of work in 12.3s?(Take g = 9.81 m/s2 and density of water = 1000 kg/m3) ...
We do not often consider how much energy goes into creating comforts like hot showers and cold beer. A more efficient refrigerator will give us the same cold beer while using less energy. A more water-efficient showerhead will give us the same hot shower while using less water: less water ...
The heat energy can be turned into usable electricity. People can use it to charge phones or heat water. Besides, some hot air cools in the underground and it then can be sent to cool down the people in the arts centre through pipes.When a person is just standing, he is producing ...
Estimate #2: Energy use per square foot Estimate #3: Old energy bills How much will it cost to run a heat pump? How many watts does a heat pump use? Get quotes for a heat pump, solar, and storage today Based on an EnergySage analysis of a Department of Energy database, a...
1) How much energy is needed in lifting 5 m3 of water to a height of 20 m and projecting it horizontally at a speed of 10 m/s?What must be the power of an engine capable of performing this amount of work in 12.3s?(Take g = 9.81 m/s2 and density of water = 1000 kg/m3)2)...
How much heat energy needed to convert 125 g ice 27 degrees C to 50 degrees C? Specific Heat formula: The formula for the specific heat or the energy required to convert a certain material to a certain temperature is given by: {eq}Q = mC\Delta T {/eq} ...
When the heat energy is needed, the system then moves it to areas that need warming. The heat energy can be turned into usable electricity. People can use it to charge phones or heat water. Besides, some hot air cools in the underground and it then can be sent to cool down the ...
百度试题 结果1 题目Unit for messuring how much energy the food can give us.其中energy 是“能量”的意思. 相关知识点: 试题来源: 解析 股messuring多少能量的食物能给我们.反馈 收藏