A jug of heat capacity 205jk^-1 contains water at 28°c. An electric heater of resistance 32ohms connected to a 220V source is used to raise the temperature of the water until it boils at 100°c in 4 minutes. After another 5 minutes, 300g of water has evaporated. Assuming no heat is lost to the surroundings, calculate the:
I) mass of water in the jug before heating .
II) specific latent heat of vaporization of steam. ( Specific heat capacity= 4200Jkg^-1k^-1?
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Asked by SHEKINAH
on 2nd December, 2023
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