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How much heat in kilojoules is needed to heat 3.50 grams of water (at boiling point) to 126 degrees Celsius?
Wiki User
∙ 9y ago
If you really want an accurate answer you should consult a steam table, but very roughly: one gram of water needs 540 calories (I'm old enough that when I learned this we were still using calories, and I don't remember the values in joules off the top of my head) to change state from liquid to gas, and water vapor near 373 K takes roughly half a calorie to raise its temperature by one Kelvin. So thats 540 (for the boiling itself) + 0.5*26 (for the temperature change) or a total of about 553 calories per gram, and since you've got 3.5 grams it's ... I get around 1940 calories, which you should be able to convert to kilojoules on your own.
Wiki User
∙ 9y ago
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Does ice melt and boil at specific tempurtures?
Yes, usually water will melt at anything above 0 degrees celsius or boil at 100 degrees. However pressure and altitude can change the required temperature needed for boiling/melting. The higher pressure the lower temperature required and vice versa The higher altitude the less temperature needed
How much heat energy in kilojoules is required to convert 68.0 g of ice at 18.0 to water at 25.0?
It requires 1 calorie to increase 1 mL of water by 1 degree Celsius. In 68 grams of water, there are 68 mL. The change in temperature is 7 degrees, so 476 calories are needed. 1 calorie has 4.184 joules, hence 1.992 kJ are needed.
How hot is a match?
Approx. 600 - 800 degrees C / 1,100 - 1,500 degrees F
What temp does a kettle need to be to cause evaporation?
the temperature that is needed to boil water is 100 degrees Celsius or over.
How hot is 200mL of water bolied?
At sea level, liquid water never gets hotter than 100 degrees celsius/212 degrees fahrenheit. This is known as the boiling point, which varies depending on altitude. The low the pressure, the higher the boiling point, and vice versa. If you were inquiring as to the amount of energy needed to boil 200ml water in a certain amount of time, I can't answer, although I'm sure the math is very simple.
How many calories are needed to vaporize 1 gram of boiling water at 100 degrees?
540 calories are needed to turn one gram of water at 100 degrees celsius to steam.
How many calories are needed to change 1 gram of 100 degrees Celsius boiling water to 100 degrees Celsius steam?
This is the latent heat of vaporisation of water, which at standard pressure, is 539 calories (per gram).
What is the boiling of water in degrees celsius?
The amount of heat needed to boil water varies with the air pressure. Water in a vacuum will boil at room temperature.
How much heat is needed to raise kg of water from 4 degrees Celsius to 83 degrees Celsius?
2,641,760J...
How many more degrees does 87 degrees does it need to boil?
If its in Celsius then another 13 degrees are needed because water boils at 100 degrees Celsius
How much heat is needed to raise 8 kg of water from 4 degrees Celsius to 83 degrees Celsius?
2,641,760J...
How many kilojoules of energy are necessary to raise the temperature of 3 kilograms of cast iron from 30 degrees celsius to 120 degrees celsius?
I will use this formula. Some conversion will be required. ( I only know specific heat iron in J/gC ) q(Joules) = mass * specific heat * change in temperature Celsius 3 kilograms cast iron = 3000 grams q = (3000 g)(0.46 J/gC)(120 C - 30 C) = 124200 Joules (1 kilojoule/1000 joules) = 124.2 kilojoules of energy needed ===========================
What is the point boiling of water?
The boiling point of water is 100°C, 212°F or 373.15 Kelvin under standard conditions at sea level (at one atmosphere of pressure).The boiling point of water and any other substance depends on the atmospheric pressure, which changes with elevation. At higher altitudes, the pressure is lower, and so water boils at a lower temperature. If the barometric pressure is not at the standard value, the boiling point will be different. For example, water boils at 72 degrees Celsius on Mount Everest.Under a partial vacuum water boils at room temperature. In space (a full vacuum) water goes directly from solid ice to gas without even melting or boiling, this is called sublimation.Water boils at 212 degrees Fahrenheit and 100 degrees Celsius.The above answer is correct, provided you are at sea level. The higher you go the lower the temprature is needed to reach boiling. Getting a bit more technical, it also depends on the purity of the water you are boiling. Best we got in height school was around 97 degrees Celsius.
How many joules are needed to change the temperature of 100 g of water from 20 degrees Celsius to 40 degrees celsius?
8.200 J
Why is more heat needed to vaporize water than gasoline?
Gasoline has a less boiling point (72 degree Celsius) While water has a bigger boiling point (100 degree Celsius)
The water boils at what temperature?
100 Celsius or 212 Fahrenheit at sea level. As you go higher, the temperature drops as less force is needed to counter act air pressure. At 5000 feet above sea level (1524 meters) the temperatures are 95 C and 203 F.
Does ice melt and boil at specific tempurtures?
Yes, usually water will melt at anything above 0 degrees celsius or boil at 100 degrees. However pressure and altitude can change the required temperature needed for boiling/melting. The higher pressure the lower temperature required and vice versa The higher altitude the less temperature needed
