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Heat Transfer
Page 10
Questions (5,066)
1.In a device like the one shown below, the cylinder is allowed to fall a distance of 300 m. As a result, the temperature of the
7 answers
asked by
jana
3,551 views
Which of the following explains how the three heat transfers work together to heat the troposphere?
60 answers
asked by
Brenda
316 views
To an insulated container with 100.0 g H2O (l) at 20.0 degrees C, 175 g steam at 100.0 degrees C and 1.65 kg of ice at 0.0
5 answers
asked by
K
2,794 views
If 50.0 g of benzene, C6H6, at 25.0 °C absorbs 2.71 kJ of energy in the form of heat, what is the final temperature of the
4 answers
asked by
gsdgsd
4,287 views
a 0.5kg piece of metal (c=600j/kg/k) at 300c is dumped into a large pool of water at 20c. assuming the change in temperature of
4 answers
asked by
ikye
522 views
A hot 0.25-kg piece of iron is placed in a calorimeter containing room temperature water. How much heat is lost by the iron as
4 answers
asked by
faith
2,109 views
How much heat would be required to heat 1 gram of pure liquid water from 10C to 20C?
How would i approach this problem?
4 answers
asked by
D
1,315 views
A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. When the gas
6 answers
asked by
Tanner
18,184 views
"The energy that is transferred as heat to or from the object with the larger heat capacity must be greater than the energy that
4 answers
asked by
Josh
4,685 views
The heat capacity of object B is twice that of object A. Initially A is at 300 K and B is at 450 K. They are placed in thermal
10 answers
asked by
matt
11,286 views
A 32.2 g iron rod, initially at 22.3 C, is submerged into an unknown mass of water at 63.9 C, in an insulated container. The
7 answers
asked by
HELP
8,580 views
I'm not sure how to solve this:
If 125 cal of heat is applied to a 60.0-g piece of copper at 20.0∘C , what will the final
15 answers
asked by
mysterychicken
15,988 views
Melting Snowball: A spherical snowball melts at a rate proportional to its surface area. Show that the rate of change of the
5 answers
asked by
Eli
4,716 views
five hundred kcal of heat is added to 2-kg of water at 80 degree Celsius. how much steam is produced?
5 answers
asked by
xam
6,096 views
A sample of aluminum with mass of 53.3 g is initially at 143 ∘C
What is the temperature of the aluminum after it loses 2.76 x
4 answers
asked by
Amy
2,767 views
A 50.0 g silver spoon at 20.0 degrees Celsius is placed in a cup of coffee at 90.0 degrees C. How much heat does the spoon
5 answers
asked by
Erica
8,858 views
175g of water was heated fro 15 to 88 degrees C. how many kilocalories were absorbed by the water?
I got 94.5 kcal. Is this
5 answers
asked by
Jason
10,527 views
How much heat is required to heat 0.1 g of ice at −30 C to steam at 100 C? Use the approximate values below for your
5 answers
asked by
please help !
2,718 views
A 500 g piece of silver at 150 degree Celsius is submerged in 1000 g of water at 5 degree Celsius to be cooled. determine the
5 answers
asked by
tobby
4,313 views
Water with a mass of 0.500 kg at 15.0 degree C is mixed with 0.800 kg of water at 35.0 degree C. What is the final temperature
5 answers
asked by
christy
4,237 views
500 calories are added to 100 gram copper at 25 degree celsius
a.what will be the final temperature? b.if the same amount of heat
4 answers
asked by
jhanz
2,644 views
6.00g of gold was heated from 20.0 degrees celcius to 22.0 degrees celcius. how much heat was applied to the gold?
5 answers
asked by
sharnice
4,386 views
Five kilograms of water at 40◦C is poured on a large block of ice at 0◦C. How much(in Kg) ice melts ?
Hf = 335 kJ/kg cw =
5 answers
asked by
hjjj
4,333 views
A sample of silver with a mass of 63.3g is heated to a temperature of 384.4 K and placed in a container water at 290.0K The
4 answers
asked by
Anonymous
3,883 views
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
5,908 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
5,452 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
7,356 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
2,563 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
6,650 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
6,260 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
3,713 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
1,890 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
6,983 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
1,514 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
3,459 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
6,482 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
8,747 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
1,659 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
3,960 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!!!
3,459 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
4,330 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
2,547 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
4,787 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
3,317 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
1,197 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
5,937 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
4,351 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
3,427 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
4,651 views
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