If an electric immersion heater is to be used to heat the water, explain the sig

Question

If an electric immersion heater is to be used to heat the water, explain the significant of the wattage of the immersion heater. Start by explaining what a watt is and the un-associated with it. If the immersion heater is rated at 250 Watts what does that mean? 1 W = 10. Is the heater absorbing energy or releasing energy? How does the sign of the energy the heater compare to that of the energy being absorbed by the water? If the heater and water are isolated from the surroundings, what is the net change in energy of the system?

Explanation / Answer

Hi

Watt is the unit of power and it is defined as the unit joule of work done in unit seconds of time.

If an appliance is rated as 250 Watt, it means that it consumes 250 joule of energy in one hour. So, the immesion rod consumes 250 joule in 1 hour.

Thank you

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