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If 150 grams of water changes temperature by 7.2 C how much heat energy flows?
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∙ 14y ago
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Wiki User
∙ 14y ago
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How much energy is gained by 3 grams of ice when it changes to water?
No energy is gained. On the contrary, energy is required to make ice melt.
How much energy is needed to raise the temperature of 2.0 grams of water of 5.0 Celsius?
42 J
How does energy play a part in matter changing state?
Energy directly relates the the temperature of a substance. The more energy in is proportional to a higher temperature. The inverse is also true. When changing states you must use the formula Q=ML where Q is the energy in Jules, M is the mass in grams and L is the latent heat (fusion or vaporization) of the substance. This determines how much energy is needed to change state.
Is Temperature the flow of energy from warm matter to cool matter?
No, certainly not.Temperature is a measure of the average kinetic energy of the particles in a body. The temperature of a thing is how strongly the little bits of that thing are shaking about. If they shake hard enough, meaning that the thing is hot enough, they shake the bits apart, so that the thing melts or evaporates.If I take something hot and put it against something cold, then the shaking of the molecules of the hot matter jostle the molecules of the cold matter, passing on some of their energy. To us that is a flow of heat energy from the hot matter to the cold.Get that straight! It is a flow of energy, not of temperature, and the temperature is not the flow!But, you say, suppose I take 10 grams of water at 95 degrees and put them against 10 grams of water at 35 degrees, I will get 20 grams at 65 degrees, right? How does that differ from a flow of temperature?Temperature does not flow; heat does. I chose that example carefully to make it look like a flow of temperature. Think of a different example: suppose that we put 10 grams of mercury at 95 degrees against 10 grams of water at 35 degrees; then we would get the whole lot at just about 37 degrees instead of 65 degrees, because it takes about 30 times as much heat to increase the temperature of one gram of water by one degree as it takes to heat one gram of mercury by one degree.Now, what happened to that "flow of temperature"?Get the picture?Heat will flow until the temperatures are the same all right, but the heat still is the only thing that flows.But, you say, isn't the temperature itself the flow?No, because if I have water at 95 degrees and I don't have it touching anything at a different temperature, then there is no flow of heat (or energy, if you like; same thing in our examples) and yet the temperature stays at 95. If the temperature were the flow, then zero flow would mean zero temperature, right? And do we get zero temperature? Not a bit of it; we get 95 degrees!Is this helping you get it straight? If not, ask again.
How much energy does 100 grams of apples give you?
an apple gives you 7kcal of energy
How much energy is gained by 3 grams of ice when it changes to water?
No energy is gained. On the contrary, energy is required to make ice melt.
How much energy is needed to increase the temperature of 755 grams of ironfrom 283Kelvin to 403Kelvin?
quite abit
How much energy is needed to raise the temperature of 2.0 grams of water of 5.0 Celsius?
42 J
When 418 joules of heat energy are added to 10 grams of water at 20C the final temperature of the water will be?
21
What is the total heat loss if you have 18 grams of aluminum and the temperature changes from 64 degrees Celsius to 48 degrees Celsius?
Approx 4974 Joules.
How much energy is absorbed by 50 grams of water if the temperature changes from 22 degrees celsius to 28 degrees celsius?
Change in temp = 28° - 22° = 6°. Heat capacity of liquid water is 1 calorie per gram per degree(C).So the energy absorbed is (50) x (6) = 300 calories.
What is the density at 22 degrees Celsius of 15.0 milliliters of a liquid that has a mass of 4.9 grams?
If those 4.9 grams of mass fill 15.0 milliliters of space right now, this minute, then the density of the substance is 4.9/15 = 0.3267 grams per cm3 right now, this minute, regardless of the temperature. If the temperature changes, its volume will change, and so will its density.
What is the unit to temperature?
Grams
How many grams of water were involved if a mass of water dropped in temperature by 25.1 degrees celcius. It gave off 5240.0J of energy in the process.?
k
How does energy play a part in matter changing state?
Energy directly relates the the temperature of a substance. The more energy in is proportional to a higher temperature. The inverse is also true. When changing states you must use the formula Q=ML where Q is the energy in Jules, M is the mass in grams and L is the latent heat (fusion or vaporization) of the substance. This determines how much energy is needed to change state.
How much heat energy is absorbed in 65 gram sample whose temperature changed from 45 to 80 degrees celsius?
That completely depends on the specific heat capacity of the substance of which the sample is composed, which you haven't identified. It will take a lot more heat energy to raise the temperature of 65 grams of water 35 degrees than it would take to do the same to 65 grams of iron or yogurt, e.g.
In which physical state will a sample of a 100 grams of water contain the most energy?
100 g Steam at high temperature (>100°C) and pressure (>1 Bar)
