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600 g of water at 30^(@)C is kept in a v...

600 g of water at `30^(@)C` is kept in a vessel of water equivalent 60 g. If the vessel is supplied heat at the rate of `"100 cal.s"^(-1)`, how much time will the water take to reach its boiling point?

Text Solution

Verified by Experts

Heat absorbed by the water
`=600xx1xx(100-30)=600xx70="42000 cal"`
Heat absorbed by the container
`=60xx1xx(100-30)=60xx70="4200 cal"`
`therefore" Total heat absorbed "=42000+4200="46200 cal"`
`therefore" Required time"=(46200)/(100)=462s="7 min 42 s."`
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