An immersion heater has a power rating of 1200 watts. It is used to heat water...
An immersion heater has a power rating of 1200 watts. It is used to heat water for coffee. How long (in minutes) should it take to bring 1.3 L of water from room temperature (20°C) to 83°C?
Homework Answers
Mass of one litre of water is equal to 1kg. The mass 1.3 litres of water is m=1.3kg
The amount of heat required to increase the temperature of a substance of mass m from Ti to Tf is
where C is the specific heat of the system.
The amount of heat required to raise the temperature of 1.3kg of water from 20°C to 83°C is
The 1200W heater supply 1200 Joules of energy every second. The time in seconds required to supply Q energy is
We know that 1 second = (1/60) minute. The time in minutes is
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An immersion heater has a power rating of 1200 watts. It is used
to heat water...
An immersion heater has a power rating of 600 watts. It is used to heat water...
An immersion heater has a power rating of 600 watts. It is used to heat water for coffee. How long (in minutes) should it take to bring 1.1 L of water from room temperature (20°C) to 84°C?
Time 2 An immersion heater has a power rating of 700 watts. It is used to...
Time 2 An immersion heater has a power rating of 700 watts. It is used to heat water for coffee. How long in minutes) should it take to bring 0.2 L of water from room temperature (20°C) to 88°C? Submit Answer Tries 0/20 e Post Discussion Send Feedback
An electric immersion heater has a power rating of 1200 W. If the heater is placed...
An electric immersion heater has a power rating of 1200 W. If the heater is placed in a 1.6 kg of water at 15 °C, how many minutes will it take to bring the water to a boiling temperature? (Assume that there is no heat loss except to the water itself. cwater=4186 J/kg.°C)
An electric immersion heater has a power rating of 1800 W. If the heater is placed...
An electric immersion heater has a power rating of 1800 W. If the heater is placed in a 1.2 kg of water at 25 °C, how many minutes will it take to bring the water to a boiling temperature? (Assume that there is no heat loss except to the water itself. cwater=4186 J/kg.°C)
A small electric immersion heater is used to heat 57 g of water for a cup...
A small electric immersion heater is used to heat 57 g of water for a cup of instant coffee. The heater is labeled “190 watts” (it converts electrical energy to thermal energy at this rate). Calculate the time required to bring all this water from 24°C to 100°C, ignoring any heat losses. (The specific heat of water is 4186 J/kg·K.) How can I solve this problem?
A small electric immersion heater is used to heat 57 g of water for a cup...
A small electric immersion heater is used to heat 57 g of water for a cup of instant coffee. The heater is labeled "140 watts" (it converts electrical energy to thermal energy at this rate). Calculate the time required to bring all this water from 22°C to 100°C, ignoring any heat losses. (The specific heat of water is 4186 J/kg-K.) Number Units the tolerance is +/-2%
4. An electric immersion heater normally takes 100 minutes to bring cold water in insulated container...
4. An electric immersion heater normally takes 100 minutes to bring cold water in insulated container to a certain temperature, after which a thermostat swi heater off. One day the line voltage is reduced by 60% because of overload does the heating of water take now? Assume that the resistance of the heat does not change. switches th How long
A small immersion heater is rated at 285 W . The specific heat of water is...
A small immersion heater is rated at 285 W . The specific heat of water is 4186 J/kg⋅C∘. Estimate how long it will take to heat a cup of soup (assume this is 250 mL of water) from 20 ∘C to 78 ∘C. Ignore the heat loss to the surrounding environment. Express your answer using two significant figures.
A physics student uses a 115.00 V immersion heater to heat 330.00 grams of water for...
A physics student uses a 115.00 V immersion heater to heat 330.00 grams of water for herbal tea. During the two minutes it takes the water to heat, the physics student becomes bored and decides to figure out the resistance of the heater. The student starts with the assumption that the water is initially at the temperature of the room Ti = 25.00°C and reaches Tf = 100.00°C.The specific heat of the water is c = 4180 J/(kg · °C)....
part b Review Constants Periodic Table An immersion heater used to boil water for a single...
part b
Review Constants Periodic Table An immersion heater used to boil water for a single cup of tea plugs into a 120 V outlet and is rated at 250 W. Suppose your super-size, super-insulated tea mug contains 400 g of water at a temperature of 13 °C. You can ignore the energy needed to raise the temperature of the mug and the heater itsell What is the resistance of the heater? Express your answer with the appropriate units. R=582...
Time 2 An immersion heater has a power rating of 700 watts. It is used to heat water for coffee. How long in minutes) should it take to bring 0.2 L of water from room temperature (20°C) to 88°C? Submit Answer Tries 0/20 e Post Discussion Send Feedback
A small electric immersion heater is used to heat 57 g of water for a cup of instant coffee. The heater is labeled "140 watts" (it converts electrical energy to thermal energy at this rate). Calculate the time required to bring all this water from 22°C to 100°C, ignoring any heat losses. (The specific heat of water is 4186 J/kg-K.) Number Units the tolerance is +/-2%
4. An electric immersion heater normally takes 100 minutes to bring cold water in insulated container to a certain temperature, after which a thermostat swi heater off. One day the line voltage is reduced by 60% because of overload does the heating of water take now? Assume that the resistance of the heat does not change. switches th How long
part b
Review Constants Periodic Table An immersion heater used to boil water for a single cup of tea plugs into a 120 V outlet and is rated at 250 W. Suppose your super-size, super-insulated tea mug contains 400 g of water at a temperature of 13 °C. You can ignore the energy needed to raise the temperature of the mug and the heater itsell What is the resistance of the heater? Express your answer with the appropriate units. R=582...
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