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An electric heater of 1.08 kW is immersed in water. After the water has reached a temp. of 100 degree celcius , how much time will be required to produce 100g of steam?

An electric heater of 1.08 kW is immersed in water. After the water has reached a temp. of 100 degree celcius , how much time will be required to produce 100g of steam?

Grade:12

1 Answers

Bejoi Mathew
106 Points
4 years ago
First, we calcuate the latent heat of vapourization which is nothing but the electric energy consumed.
ie 2260 * 103J/kg
Heat required to convert 100g of steam = 226 * 103J
Power of the transmission heater= 1.08 kW
Now, Power = Energy/time
Therefore, Time = Energy/Power
I HOPE I DID A GOOD JOB IN BREAKING UP THE QUESTION TO UNDERSTAND IT CONCEPTUALLY.
PLEASE SOLVE FOR THE FINAL ANSWER YOURSELF.
THANK YOU.

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