alcohol of mass 0.5kg in a glass container of mass 0.4kg is heated by an immersion heater of power 300W.The initial temperature of the alcohol is 18℃.Neglecting any heat lost to the surrondings,estimate the time the immersion heater has to be switc

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alcohol of mass 0.5kg in a glass container of mass 0.4kg is heated by an immersion heater of power 300W.The initial temperature of the alcohol is 18℃.Neglecting any heat lost to the surrondings,estimate the time the immersion heater has to be switc
alcohol of mass 0.5kg in a glass container of mass 0.4kg is heated by an immersion heater of power 300W.The initial temperature of the alcohol is 18℃.Neglecting any heat lost to the surrondings,estimate the time the immersion heater has to be switched on so that the alcohol begins to boil?(boiling point of alcohol=78℃)(specific heat capacity of alcohol=2500Jkg^-1℃^-1)(S.H.C of glass =600Jkg^-1℃^-1)我只剩下这点财富了,不要嫌少

alcohol of mass 0.5kg in a glass container of mass 0.4kg is heated by an immersion heater of power 300W.The initial temperature of the alcohol is 18℃.Neglecting any heat lost to the surrondings,estimate the time the immersion heater has to be switc
(0.5*2500 + 0.4*600)*(78-18)/300=298秒

alcohol of mass 0.5kg in a glass container of mass 0.4kg is heated by an immersion heater of power 300W.The initial temperature of the alcohol is 18℃.Neglecting any heat lost to the surrondings,estimate the time the immersion heater has to be switc alcohol the mass of 与 a mass of 有啥区别? mass的用法the mass of 和 a mass of 有什么区别? mass 英语翻译3.3.Effect of modification mass ratioIn order to assess the adsorption efficiency of three modifiedattapulgites by various mass ratios,the typical Langmuir isothermsat the temperature of 305 K have been shown with the experimen-tal data i a mass of =masses of吗? 英文翻译as the mass of air rises mass of driveable vehicle怎么翻译 mass of后接可数还是不可数? a mass of 的近义词和词性 a mass of是什么意思及用法 mass of 后跟名词单数还是复数 A mass m is attached to a massless spring with a force constant k.The mass rests on a horizontal frictionless surface.The system is compressed a distance x from the spring's initial position and the released.The momentum of the mass when the spring p The mass of 1000cm^3 of copper is 8.9 kg and the specific heat capacity of copper is 400 J kg^-1 K^-1.Find its heat capacity.The mass of 1000 cm^3 of water is 1 kg.For the smae volumn of copper and water,which one has the larger heat capacity determine the mass of water formed when 12.5L NH3(at 98K and 1.5 atm) is reacted with 18.9L of O2 (at 323K and 1.1 atm) 英语翻译A pool cue striking a stationary billiary ball (mass= 0.25kg) gives the ball a speed of 2m/s.If the force of the cue on the ball was 25N,over what distance did this force act?如果用动能定理的话直接是k=1/2 mv^2= 0.5*0.25kg*2m/s a mass of 怎么用还有masses of