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How much energy is necessary to heat 1.0 kg of water from room temperature (20 and deg C) to its boiling point (Assume no energy loss.) (b) If electrical energy were used how much would it cost at?
If water boils at 100degrees and alcohol boils at 70degreesIf you have 500ml of each at a temperature of 20degrees which liquid would require most heat energy to make it boil?
The water will be require more water because it needs 80degrees more heat than the alchohol which only needs 50degrees more heat.
The energy required to boil water will depend upon the starting temperature of the water, your location above or below sea level, and the mass of water being boiled. This …is because the boiling point of a substance is when its vapor pressure equals the pressure surrounding the liquid.
O.385x1x2=0.77 Answer: 0.77
How many joules of energy are necessary to boil the water that has 46g and has the temperature of 100 degreees C?
According to Einsteins theory, the fact that he had only one teste clearly adentifies that the degrees that you have provided are deniable therefore the answer should would an…d will be always zero degres divided by the percentage of the aqua which is h20
it costs about 3p to boil a 1/3 full electric kettle at the moment (5.11.08)
Geothermal heating and cooling can use the relatively constant temperature of the earth to heat and cool homes and businesses with 40% to 70% less energy than conventional sys…tems. It also has the added benefit of providing free domestic hot water during the summer season and reduced cost for domestic hot water during the winter. Installation for geothermal heat pumps does have a high upfront cost. There are a lot of variables--where you live, the ground to be drilled, the square foot of the house--and though everyone agrees about its high initial expense, exactly "how much" remains vague at best. A good general idea for cost would be twice the price of a regular heat pump system with air conditioning. A geothermal heat pump costs about $2,500 per ton of capacity, with the typically sized house needing a three-ton unit and putting the cost at roughly $7,500. Installation can bump the costs up to $10,000 or more depending on depth of pipes, type of equipment, and soil conditions. For much larger buildings and projects, costs can soar much higher.
1 calorie per gram per deg C
How much energy must be added to a 1-kg piece of gold with a specific heat of 130 J kg C to increase its temperature from 20 C to 100 C?
What is the total number of joules of heat energy absorbed by 15 grams of water when it is heated from 30 deg C to 40 deg C?
do your hw
How much energy must be added to a 1 kg piece of glass with a specific heat of 644 J kg C to increase its temperature from 20 C to 100 C?
51,520 j apexD
How much energy must be added to a 2-kg of glass with a specific heat of 644 J kg to increase its temperature from 10oC to 50oC?
Specific heat capacity water - 4.187 kJ/kgK 4.187 kJ/kgK * 10'K * 1Kg = 41.87 Kj
4.1858 joules of energy will raise the temperature of 1 g of water by 1oC. Thus, 4.1858 * 955 * 80 = 319795.12 joules of energy is required to raise the temperature of 955 g… of water by 1oC.
How much heat energy is needed to heat a 5.0 gram sample of water from 20 to 30 The specific heat of water is 4.18 J?
Q (heat) = mass*Cp*Temp. Change (where Cp is specific heat) Q = 5.0 grams * 4.18 J/goC * (30-20oC) =5*4.18*10 = 209 J
Depends how much water and the temperature of the water. To heat 1 mL of water by 1 degree C 1 cal of energy (4.184 Joules) is required. Assuming that the water is at 25 deg…rees C, to boil one litre (liter) of water you would require 75,000 cal or 313.8 kJ. Or 16.74 g of mars bar ;). In terms of solar energy a 180 watt solar panel would take just under half an hour to gather enough energy to boil a litre of water from 25 degrees C (provided it's receiving maximum sunlight of course.