Question

It takes 15 minutes for an electric kettle to heat a certain quantity of water from zero degree celsius to boiling point 100 degree Celsius. It requires 80 minutes to turn water at hundred degree Celsius into steam. Determine the specific latent heat of steam.

Answer 1

Answer:

According to us the temperature would be 1000C instead of 300C. Although, refer the solution according to your question.

Heat supplied by the kettle in 15 min=ms∆θ=m×1×30Heat supplied by the kettle in 80 min=30m×8015=160mHeat required to boil off all the water at 100°C=mL⇒ mL=160m⇒ L=160 cal/gm