A small electric immersion heater is used to heat 100 g of water for a cup of instant coffee. The heater is labeled “200 watts”. Calculate the time required to bring all this water from 23.0 °C to 100 °C, ignoring any heat losses. Assume specific heat of water is 4.187 J/g-°C.

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A small electric immersion heater is used to heat 100 g of water for a cup of instant coffee.  The heater is labeled “200 watts”. Calculate the time required to bring all this water from 23.0  °C to 100 °C, ignoring any heat losses. Assume specific heat of water is 4.187 J/g-°C.

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