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A jug of heat capacity 250j contains water of 28°C. An electric heater of resistance...

A jug of heat capacity 250j contains water of 28°C. An electric heater of resistance 35ohms connected to a 220v source is used to raise the temperature of water until it boils at 100°C in 4 minutes. After another 5 minutes 300g of water is evaporated. Assuming no heat loss to the surrounding. Calculate the (a). Mass of water in the jug before heating
(b) specific latent heat of vapourization of steam (SHC of water = 4200j/kg/k?
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Asked by Raphael on 1st March, 2024
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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709