Posts tagged temperature
Q&A: Relationship between temperature and heat energy during the phase changes of water…?
Oct 19th
Question by Mehowkyhry: Relationship between temperature and heat energy during the phase changes of water…? Relationship between temperature and heat energy during the phase changes of water…? Relationship between temperature and heat energy during the phase changes of water…
please answer these questions; so i can have a better understanding.
a. Does the temperature changes during melting? b. Is energy required for each phase change? c. Can both liquid and steam exist at 100C? d. What must be changed, temperature or heat energy during condensation? Please explain.
Best answer:
Answer by what?What I know for sure is that temperature cannot change during a phase change. More >
CHEMISTRY: The volume of energy essential to alter a provided mass of ice to drinking water at consistent temperature is calle?
Oct 4th
Question by trixiepuff36: CHEMISTRY: The amount of power required to transform a provided mass of ice to drinking water at continuous temperature is calle? The sum of electricity essential to change a offered mass of ice to h2o at continual temperature is called the heat of
A. condensation B. crystallization Do. fusion D. formation
Best reply:
Answer by rockD. formation
What do you assume? Answer beneath!
You heat one hundred cc of h2o to make some tea, raising its temperature by 30o C. How much energy is essential?
Sep 23rd
Query by MF: You heat 100 cc of drinking water to make some tea, raising its temperature by 30o C. How significantly energy is needed? You warmth a hundred cc of drinking water to make some tea, raising its temperature by 30o C. How much energy is required?
A. 3000 Joules. B. 3000 calories. C. 33.three calories. D. 33.three Joules.
Greatest solution:
Solution by redbeardthegiantone] one hundred cc = one hundred g 2] one calorie = one diploma C on a single gram three] so you have a hundred x 30 = 3,000 calories
4] 1 calorie = 4.184 Joules, which is irrelevant to More >
Q&A: How does the change in temperature affect molecular motion (energy) of water molecules?
May 30th
Query by brit (:: How does the change in temperature have an effect on molecular motion (vitality) of water molecules?
Greatest answer:
Reply by UtopianAs temperature raises, power raises so molecular motion is increased.
Add your own solution in the feedback!
If water is still being heated but the temperature stayed the same, where is the energy going?
May 28th
Query by Equus.rider: If water is nonetheless getting heated but the temperature stayed the exact same, wherever is the vitality going? If drinking water is even now currently being heated but the temperature stays the very same, where is the vitality going?
Very best solution:
Remedy by MickIt largely goes into the creation of steam. There is a significant energy requirement to make steam and it is known as ‘latent heat’.
Also there will be a small quantity of conduction and a small sum of radiation.
What do you assume? Answer under!
How much energy must be added to 100.0 g of water to raise the temperature of water from 22.0 to 90.0 °C?
May 14th
Issue by Tiffany: How considerably power need to be added to 100. g of h2o to raise the temperature of drinking water from 22. to ninety. °C? The certain warmth of h2o is 4.184 J/g·K. How considerably power should be added to one hundred. g of water to increase the temperature of h2o from 22. to 90. °C?
Any assist would be appreciated!
Greatest reply:
Solution by Dr.AUse the equation Q = mass x distinct heat x delta T
Q = 100. g x four.184 J/g°C ( ninety. – 22.)=2.85 x 10^4 J
Add your individual solution in the feedback!
More >How many joules of energy are required to raise the temperature of 5g of water 10 degrees celcius?
May 13th
Question by dangitstang: How several joules of energy are required to raise the temperature of 5g of water 10 degrees celcius? How a lot of joules of energy are required to raise the temperature of 5g of drinking water 10 degrees celcius?
an explanation would be amazing :]
Very best answer:
Response by waltVery first establish how several calories are needed to raise the temp, then convert calories to Joules.
five calories are essential since the definition of calorie is the volume of heat essential to elevate one g of water one diploma celsius.
one Joule = .239 calorie
So divide five by .239
your reply is 20.92 More >
Q&A: what mass of water is required to absorb 4.7x10to the 5 J of energy from a car engine while the temperature?
Apr 30th
Query by momtuysk: what mass of h2o is required to soak up 4.7x10to the five J of electricity from a car engine even though the temperature? what mass of drinking water is necessary to absorb 4.7x10to the five J of energy from a auto engine whilst the temperature boosts from 298k to 355k?
Finest reply:
Answer by HahahaThe certain warmth of liquid water is four.18 J/g∙K As a result the required mass of water is: (4.7×10^5 J)/(355K-298K)*(four.18 J/g∙K) = 1972g ≈ 2. kg < > (with 2 substantial figures)
Give your reply to this issue under!
Duncan knows that it takes 36400cal of energy to heat a pint of water from room temperature to boiling.?
Mar 24th
Question by babyblueeyes: Duncan knows that it takes 36400cal of power to warmth a pint of h2o from space temperature to boiling.? Duncan understands that it will take 36400cal of vitality to heat a pint of drinking water from room temperature to boiling. Even so, Duncan has ready ramen noodles so numerous occasions he does not want to measure the drinking water very carefully. If he happens to warmth .900pint of space-temperature water, how numerous kilojoules of warmth vitality will have been absorbed by the drinking water at the instant it commences to boil?
Very best answer:
Solution by Steve O.900 More >
How much thermal energy transfer is required to maintain constant temperature when?
Mar 11th
Query by kapfenberg99: How a lot thermal energy transfer is necessary to maintain continual temperature when? How much thermal power transfer is necessary to maintain continuous temperature when twenty.200000000000003 g of liquid water decompose to the elements hydrogen and oxygen at 25.0°C?
ΔH for this method is -285.8 kJ per mole of liquid h2o
Enter the magnitude of the energy transfer, that is do not contain a plus or unfavorable sign.
Very best answer:
Reply by Michael EWhatever no of moles drinking water x ΔH. Absolutely you can work out moles.
Add your own reply in the comments!
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