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Heat Transfer
Page 3
Questions (4,996)
How does a simmering pot of spaghetti sauce illustrate convection currents? (1 point)
Warmer sauce at the bottom of the pot is
3 answers
asked by
I.D.C.I.I.C.I.S.S.I.N.T.D.W.H.T.B.D.
377 views
what happens when a bowl of ice cream is left uneaten on a counter in a warm room
A. heat is transferred from the air to the ice
4 answers
asked anonymously
443 views
A 0.6-g peanut is burned beneath 50 g of water, which increases in temperature from 22degreesC to 50 degreesc. What is the exact
4 answers
asked by
Rachel
3,446 views
How many Btu's are required to change five pounds of ice at 20°F to water at 160°F?
a. 2,608 Btu’s b. 1,390 Btu’s c. 1,304
5 answers
asked by
Chris
8,555 views
What mass of water will be needed to change the temperature 25 Celsius using 4532 J of heat energy
4 answers
asked by
macie
1,244 views
1. How much heat energy is lost by 3 kg of water when it cools from 80 degrees C to 10 degrees C?
2. A 300 g piece of aluminum is
7 answers
asked by
Debra
5,796 views
how many kilojoules are required to raise the temperature of a 150. g sample of silver from 25 °C to 135 °C? Silver has a
7 answers
asked by
Emi
5,111 views
A heat pump is proposed that uses 50 degree F ground water to heat a house to 70 Degree F. The groundwater experiences a
4 answers
asked by
chris
2,020 views
A piece of lead with a mass of 27.3 g was heated to 98.90oC and then dropped into 15,0 g of water at 22.50oC. The final
5 answers
asked by
Sarah
2,413 views
A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees
3 answers
asked by
Melissa
2,118 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
11,281 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
10,525 views
Approximately how many joules of heat are needed to raise the temperature of a 4.0-gram sample of water to 8.0C?
that is all of
5 answers
asked by
Caroline
6,257 views
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.47 g of C6H6 is added to 5.69 kg of
5 answers
asked by
Destany
5,317 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
4,232 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
7,349 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
6,646 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
1,508 views
1. A 500.0 g metal block absorbs 1.125 × 104 J of heat to raise its temperature by 50.0 K. What is the substance?
5 answers
asked by
Pat
3,003 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
2,539 views
Calculate the total heat content of 10 kg of ice at -23°C. (Hint: absolute zero is -273°C.)
Be mindful of significant figure
5 answers
asked by
Kathryn
1,297 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
2,743 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
1,782 views
The temperature of a 12.58g sample of calcium carbonate increases from 23.6degrees celcius to 38.2 degrees celcius. If the heat
5 answers
asked by
Tommy
3,870 views
A 6.75-g sample of gold (specific heat capacity = 0.130 J/g °C) is heated using 55.8 J of energy. If the original temperature
5 answers
asked by
dave
3,718 views
How much heat is given up when 20 g of steam at 100 deg C is condensed and cooled to 20 deg.C?
4 answers
asked by
Mary
3,594 views
a metal spoon is placed in one of two indentical cups of hot coffee. Which cup will be cooler after a few minutes?
6 answers
asked by
rosie
7,346 views
How many grams of ice at 0°C and 101.3 kPa (standard pressure) could be melted by the addition of 0.80 kJ of heat?
4 answers
asked by
Anonymous
816 views
how many joules are required to heat a frozen can of juice (360 grams) from -5C (the temperature of an overcooled refrigerator
4 answers
asked by
Kelly
2,578 views
A 0.190 kg piece of copper is heated and fashioned into a bracelet. The amount of energy transferred as heat to the copper is
6.6
4 answers
asked by
arriell
2,869 views
if the specifc heat of iron = 0.46J/g C,how much heat is needed to warm 50g of iron from 20C to 100C
-- I do not know how to make
4 answers
asked by
sam
5,831 views
A cube of ice is take from the freezer at -8.5C and placed in a 95g calorimeter aluminum cup containing 310g of water at 20degC.
4 answers
asked by
Mark
2,527 views
how many kilojoules of heat are absorbed when 1.00L of water is heated from 18 degrees celsius to 85 degrees celsius?
4 answers
asked by
brit
3,094 views
1LB of ice at 20 deg f exerts its force downward. after the ice has absorbed 200 BTU's what direction will the force be exerted?
5 answers
asked by
Gilbert
1,656 views
A 1.80-cm-thick wood floor covers a 4.0 m times 5.5 m room. The subfloor on which the flooring sits is at a temperature of
4 answers
asked by
Ana
3,040 views
The question is:
A small block of ice at 0oC is subjected to 10 g of 100oC steam and melts completely. Show that the mass of the
5 answers
asked by
Mary
2,652 views
A 580mL sample of water was cooled from 60°C to 10°C. how much heat was lost?
4 answers
asked by
Anonymous
613 views
What amount of ice must be added to 540.0 g of water at 25.0 °C to cool the water to 0.0 °C and have no ice
4 answers
asked by
KO
2,887 views
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0 ∘C, to steam at 115 ∘C. The heat capacity
4 answers
asked by
Carolyn
3,886 views
A 28.4 g sample of aluminum is heated to 39.4 C, then is placed in a calorimeter containing 50.0 g of water. Temperature of
4 answers
asked by
Ish
4,283 views
If 1000. J of heat energy are removed from 100. G of water at 35.0 degrees Celsius, what is the final temperature of the
4 answers
asked by
Kay
850 views
A piece of copper of mass 40g at 200°C is placed in a copper calorimeter of mass 60g containing 50g of water at 10°C. Ignoring
4 answers
asked by
POPPY
2,974 views
Calculate the heat in kilojoules needed to vaporize 8.00kg of water at 100∘C.
3 answers
asked by
Jacqueline
1,743 views
a piece of metal of mass 50g heated to 100°c is dropped into 200g of water of 14°c in copper calorimeter weighing 80g and
3 answers
asked by
blessyn
655 views
.100 KG of an unknown metal at 94°C is placed in 100 g of water at 10°C the final temperature of the metal and water are at
4 answers
asked by
Michaela
739 views
A hollow tube having an inside diameter of 2.5 cm and a wall thickness of 0.4 mm is exposed to an environment at h=100 W/m2¨¬C
3 answers
asked by
RHS
988 views
James Joule once attempted to measure the increase in temperature of the water in a waterfall resulting from its decrease in
3 answers
asked by
Alex
1,447 views
If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?
3 answers
asked by
Vanessa
1,506 views
Compare conduction to radiation in terms of heat transfer.(1 point)
a. Both methods require contact between objects, but only
3 answers
asked by
N/A
128 views
The temperature of piece of copper of mass 250g is raised to 100% and is then transferred to well lagged aluminum can mass 10g
4 answers
asked by
HUDSON
1,182 views
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