Homework SourseNEED HELP If a dehumidifier uses 310 Watt hours per liter wh
NEED HELP! If a dehumidifier uses 310 Watt hours per liter, what is the height in which the water will need to fall to cause the kinetic energy to equal the energy used by the dehumidifier?
NEED HELP! If a dehumidifier uses 310 Watt hours per liter, what is the height in which the water will need to fall to cause the kinetic energy to equal the energy used by the dehumidifier?
Solution
>> Let Volume of Water = 1 lt = 0.001 m3
As, Density of Water = 1000 Kg/m3
So, Mass of Water, m = 0.001*1000 =1 Kg
>> Now, Energy used by dehumidifier = 310W-hr = 0.310 Kw-hr = 1116 KJ
As, After dropping from the height there will be potential energy generates
So, mgh = 1116
=> 1*9.81*h = 1116
=> h =113.76 Km ........ANSWER......REQUIRED HEIGHT......
