Chemistry
posted by Elle .
A portable electric water heater transfers 255 watts (W) of power to 5.5 L of water, where 1 W = 1 J/s. How much time (in minutes) will it take for the water heater to heat the 5.5 L of water from 25 degrees celsius to 42 degrees celsius? (Assume that the water has a density of 1.0 g/mL)

How much heat is needed to raise the T of the water? That is
mass H2O(5500g) x specific heat H2O x (TfinalTinitial) = q
255 J/s x #s = q
Solve for #seconds.
Respond to this Question
Similar Questions

AP Physics
You go to kitchen to boil water. You pour 280 gram of water to a container, and put the container on a 293 W electric heater. Assume that all the heat from the heater is used to heat the water. The specific heat of water is 4.19 J/g … 
College Physics
On average, an electric water heater operates for 3.4h each day. If the cost of electricity is $0.3 kWh, what is the cost of operating the heater during a 30day month? 
Physics
An electric immersion heater is rated 5 A when connected to a 120V circuit. What is the resistance of the heater? 
physics
The recovery time of a hot water heater is the time required to heat all the water in the unit to the desired temperature. Suppose that a 62gal (1.00 gal = 3.79 x 103 m3) unit starts with cold water at 11 °C and delivers hot water … 
Physics
The recovery time of a hot water heater is the time required to heat all the water in the unit to the desired temperature. Suppose that a 62gal (1.00 gal = 3.79 x 103 m3) unit starts with cold water at 11 °C and delivers hot water … 
physics
An electric heater used to boil small amounts of water consists of a 25Ω coil that is immersed directly in the water. It operates from a 60V socket. How much time is required for this heater to raise the temperature of 0.50 … 
Chemistry
A portable electric water heater transfers 255 watts (W of power to 5.5 L of water, where 1 W=1J/s.How much time (in minutes) will it take for the water heater to heat the 5.5 L of water from 27∘C to 49∘C? 
Physics
An electric heater that produces 860 W (1 W = 1 J/s) of power is used to vaporize water. How much water at 100 0C can be changed to steam in 5 min by the heater? 
Science: Physics
We use an electric immersion heater to heat 2,0 liters water having temperature of 20C to the boiling point. Specific heat capacity of water is 4,19 kJ/(kg c). The power of the heater is 1,50 kW and efficiency of heating is 80 %. … 
Physics
An electric heater the temperature of 120g of water in a thin light vessel through 10k in 2 minutes, when placed in 70g of water contained in a metal vessel of mass 0.55kg the temperature rises through 9k in the same time. Calculate …