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Heat Transfer
Page 10
Questions (5,077)
65.0 mL of water is heated to its boiling point. How much heat in Kj is required to vaporize it? (Assume a density of 1.00 g/mL)
7 answers
asked by
jessa
5,913 views
Calculate the amount of heat required to raise the temperature of a 65-g sample of water from 32∘C to 65∘C. (The specific
4 answers
asked by
jb
5,458 views
The specific heat capacity (cp) of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature of 15 grams
5 answers
asked by
GRACE
7,358 views
A 25.0 g aluminum block is warmed to 65.2 C and plunged into an insulated beaker containing 55.3g of water initially at 22.0C.
5 answers
asked by
natash
2,566 views
A block of ice is exposed to heat in such a way that the block maintains a similar shape as it metls. The block of ice is
5 answers
asked by
W
2,347 views
how much energy is required to change 40 g of ice at -10 C to steam at 110 C?
5 answers
asked by
Sam
6,660 views
The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy
7 answers
asked by
Heather
6,263 views
Calculate the energy needed to heat the cube of silver, with a volume of 19.0 cm3 , from 15 ∘C to 28 ∘C
4 answers
asked by
anonymous
3,714 views
How many photons will be required to raise the temperature of 2.0 g of water by 2.5 K?
4 answers
asked by
Anonymous
1,892 views
calculate the quantity of heat required to raise the temperature of 1g of ice from -10°c to 110°c
13 answers
asked by
Felix said
6,984 views
If 309 J of heat are removed from 10.0 g of ice (specific heat = 2.06 J/g
ºC) at -5.5 ºC, what is the final temperature of the
5 answers
asked by
S
1,523 views
When ice at 0C melts to liquid water at 0C, it absorbs 0.334 kj of heat per gram. Suppose the heat needed to melt 31.5 g of ice
4 answers
asked by
Capacino
3,463 views
An engine has an efficiency of 25% and produces 2000J of mechanical work during one cycle. How much energy is transferred out of
5 answers
asked by
Gram
2,392 views
How do you do this?
If 100 grams of boiling water at 100 degrees C is poured into a 100 g beaker of platinum at 0 degrees C, an
5 answers
asked by
Emma
1,877 views
In lab you submerge 100 g of 41 degree Celcius iron nails in 100 g of 25 degree Celcius water (the specific heat of iron is 0.12
4 answers
asked by
christy
6,488 views
If you have 320.0 mL of water at 25.00 °C and add 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture?
6 answers
asked by
Ryan
8,757 views
25.0 mL of ethanol (density = 0.789 g/mL) initially at 7.0 degrees celsius is mixed with 35.0 mL of water (density = 1.0 g/mL)
4 answers
asked by
Elle
1,664 views
Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 177 g of
5 answers
asked by
kelsie
3,965 views
1 kg of ice at 0° C is mixed with 9 kg of water at 50° C (The latent heat of ice is 3.34x105 J/kg and the specific heat
7 answers
asked by
calous --- HELP PLEASEE!!!
3,464 views
How to calculate the quantity of heat gained or lost in the following change:
3.50 mol of water freezes at 0 degrees C? Would it
5 answers
asked by
Anonymous
4,752 views
A lump of lead with a mass 0.5kg is dropped from a height of 20m onto a hard surface. It does not rebound but remains there for
22 answers
asked by
Asteway
4,331 views
A thimbleful of water at 100 deg C has a higher temp than a swimming pool full of water at 20 deg C, but the pool has more
4 answers
asked by
lala
2,552 views
CH3OH(g) ----> CO(g) + 2H2 (g) (delta H =+90.7k)
A) is heat absorbed or released in the course of this reaction? b) calculate the
4 answers
asked by
Anna
4,793 views
A 4.44 kg piece of granite with a specific heat of 0.803 J g-1 °C-1 and a temperature of 98.8°C is placed into 2.00 L of water
5 answers
asked by
James
3,321 views
How much heat, in kilojoules (kJ), is required to raise the temperature of 2.50kg Hg(l) from -20.0 to -6.0C? Assume a density of
6 answers
asked by
Bob
4,495 views
Liquid water has a density of 1.00g/mL at 10.0C and .996g/mL at 30.0C. Calculate the change in volume that occurs when 500mL of
4 answers
asked by
ESTR3LLA
1,200 views
the heat of vaporization for water is 540 cal/g. how many kilocalories are needed to change 22g of liquid water to steam at
5 answers
asked by
jason
5,942 views
How much heat is required to convert 32.5 grams of ethanol at 28 C to the vapor phase at 78 C?
Ethanol (C2H5OH) boils at 75 C.
5 answers
asked by
Anonymous
4,353 views
The drawing shows three cylinders that have the same length and cross-sectional areas, but each is made of different material.
4 answers
asked by
Sam
833 views
What are the Kilojoules needed to melt 24.0g of ice at O degrees C, warm the liquid to 100 degree C and change it to steam at
4 answers
asked by
Sue
3,428 views
A 54.7-g sample of aluminum at 95.0°C is dropped into 35.0 g of water at 40.0°C. What is the final temperature of the mixture?
5 answers
asked by
Deanne
4,654 views
What will be the final temperature of the water in an insulated container as the result of passing 5.00 g of steam [H2O(g)] at
4 answers
asked by
hal
4,426 views
By how much will the temperature of 2.00kg of air change if it absorbs all of the heat given up when 1.00kg of water cools from
4 answers
asked by
Saarah
874 views
how many joules of heat are lost by 3580kg granite as it cools from 41.2c to -12.9c?
4 answers
asked by
Anonymous
1,526 views
The melting point of a solid is 90.0 d/C. What is the heat required to change 2.5 kg of this solid at 40.0 d/C to a liquid? The
5 answers
asked by
Jon
5,765 views
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to
4 answers
asked by
Ryan
5,456 views
A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, which is
5 answers
asked by
<3
2,854 views
Which of the following would involve the largest production of heat per mole?
a)the burning of gasoline b)the evaporation of
4 answers
asked by
Christian
2,752 views
How much thermal energy must be added to 0.96 kg of water at 100 ∘C to make steam at 100 ∘C?
5 answers
asked by
micheal
1,166 views
1.33 kg of ice at 0°C is added to an 8.25 kg tub of water at a warmer temp. If their final temp is 15.7°C, What was the inital
5 answers
asked by
HELP PLEASE ASAP
1,777 views
While heating two different samples of water at sea level, one boils at 102°C and one boils at 99.2°C. Calculate the percent
4 answers
asked by
Carley
10,188 views
How many kilojoules are required to melt 15g of ice at 0 degrees C, and raise the temperature of the liquid that forms to 85
6 answers
asked by
Todd
6,640 views
When 155 mL of water at 26 degrees Celsius is mixed with 75 mL of water at 95 degrees Celsius, what is the final temperature of
4 answers
asked by
David
1,665 views
A 10-kg piece of aluminum (which has a specific heat of 900 J/kg×°C) is warmed so that its temperature increases by 5.0 C°.
4 answers
asked by
JJ
5,859 views
An unclothed student is in a 27 degree Celsius room.
If the skin temperature of the student is 37 degree Celsius, how much heat
4 answers
asked by
Ashleigh
1,220 views
what should be the resistance of a heating coil which will be used to raise the temperature of 500 grams of water from 28
5 answers
asked by
Anonymous
1,795 views
How much heat is absorbed by an electric refrigerator in charging 2 Kg of water at 15°C to ice at 0°C?
3 answers
asked by
aj
935 views
A cubical piece of heat-shield-tile from the space shuttle measures 0.18 m on a side and has a thermal conductivity of 0.065
4 answers
asked by
robert
3,052 views
What two components gain heat when ice is added to water?
Express it mathematically. (use appropriate symbols, not your actual
5 answers
asked by
Anonymous
3,794 views
Calculate the amount of heat (in calories) required to raise the temperature of 200g of water from 20C to 50C. The specific heat
6 answers
asked by
Christina
4,381 views
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