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Phase Change
Page 2
Questions (188)
Heat of fusion (¦¤Hfus) is used for calculations involving a phase change between solid and liquid, with no temperature
2 answers
asked by
CHM
599 views
At temperatures above 0°C, what is the sign of the change in free energy for the conversion of liquid water to ice?
A. Positive
1 answer
asked by
Morgan
403 views
A 63.8 kg block of silver is at initially at 107 C. 1.0 kg of ice at its freezing point is placed onto the block to cool it. As
2 answers
asked by
sara
480 views
liquid water of mass 10 kg & temperature 20 degree celsius mixed with 2 kg of ice at -5 degree celsius till equilibrium is
2 answers
asked by
vishal
1,301 views
How much heat is transferred when freezing 520 grams of water at 0 degrees Celsius?
1 answer
asked by
Anonymous
324 views
A styrofoam cup with a mass of 2.97g has 81.68g of hot water at60.0 •C has ice added to it untill it reaches a temrature of
3 answers
asked by
Cassidy
458 views
How much heat has to be added to change 0.500 kg ice from -10C completely to a steam of 110C. The specific heat of ice, water
5 answers
asked by
idk
648 views
Water in a piston/cylinder is at 100degC, x=0.5 with mass 1kg and the piston rests on two stops. The equilibrium pressure that
1 answer
asked by
Kyle
495 views
What mass (in grams) of steam at 100°C must be mixed with 446 g of ice at its melting point, in a thermally insulated
4 answers
asked by
HELP
681 views
Two kg of water at a temperature of 50 degrees C have 485.3 kJ of heat transferred from them, resulting in a mixture of
1 answer
asked by
Dylan
749 views
How do you calculate the number of grams of ice at 32 degrees celsius that can be melted by 1g of steam?
1 answer
asked by
Bella
446 views
Calculate the number of grams of ice at 32 celsius that can be melted by 1g of 100 degrees celsius steam
1 answer
asked by
Asia
467 views
Six grams of water changes from liquid to vapor at a pressure of one atmosphere. In the process, the volume changes from 1.3 cm3
1 answer
asked by
physicshelp
413 views
When a substance changes from one phase to another, which of the following occurs?
the substance loses or gains heat the average
3 answers
asked by
Tasia
790 views
The molar heat of fusion for water is 6.01 kJ/mol. The heat capacity for water is 75 J/mol deg. Which expression gives the
2 answers
asked by
Eric
1,319 views
Two 20.0-g ice cubes at –10.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the
2 answers
asked by
Jordan
532 views
deremine (a) the work done and (b) the change in internal energy of 1.00 kg of water when it is all boiled to steam at 100c.
2 answers
asked by
frank fred
540 views
Imagine a 600 g of water at 70oC in a piston-cylinder device. Initially, the 9-kg, 13-cm diameter piston rests on two stops such
1 answer
asked by
sara
474 views
A 28.0-g sample of ice at -18.0°C is mixed with 124.0 g of water at 85.0°C. Calculate the final temperature of the mixture
1 answer
asked by
layla
475 views
how much heat must be added to 1.0 kg of water at 100 degrees Celsius to convert it to steam at 100 degrees Celsius?
i know that
2 answers
asked by
miley
1,083 views
how long will it take an ice cube to melt completely? You left out an ice cube ant 1/4 of it melts in 1 hour. Use the following
1 answer
asked by
julie
480 views
1. From data below, calculate the total heat (in J) associated with the conversion of 0.514 mol ethanol gas (C2H6O) at 451°C
2 answers
asked by
Arian
517 views
How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C?
For water: s =
2 answers
asked by
Dani
556 views
What process occurs as a gas turns into a solid (and skips the liquid state). For example, frost forms when water vapor in the
3 answers
asked by
b
33 views
What process occurs as a solid turns into a gas (and skips the liquid state). For example, when frozen carbon dioxide (dry ice)
3 answers
asked by
b
43 views
An ice cube tray full of water is put into a freezer. Which energy change occurs in the particles in the water as it undergoes a
1 answer
asked by
Kaesawn Johnson
47 views
Given that the specific heat capacities of ice and steam are 2.06 J/g degrees C and 2.03 J/g degrees C, respectively, calculate
4 answers
asked by
Joe Schmo
2,608 views
Which best describes the transition from gas to liquid?
4 answers
asked by
Fatima
1,842 views
The heat capacity of liquid water is 4.18 J/g·°C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must
4 answers
asked by
Sue
1,678 views
The heat of vaporization of water at 100C is 40.66 kj/mol find the change in entropy when 5.0 g of water vapor condenses to
5 answers
asked by
Kassie
1,612 views
Dry saturated steam at 100 degree C is passed into 250 gm of a mixture of ice and water contained in a calorimeter of thermal
3 answers
asked by
AFOLABI .O.
1,553 views
A sample of steam with a mass of 0.552 and at a temperature of 100 condenses into an insulated container holding 4.35 of water
3 answers
asked by
amy
1,468 views
What is the final equilibrium temperature when 40.0 grams of ice at 0°C is mixed with 5.00 grams of steam at 120°C? The
11 answers
asked by
athirah
1,464 views
One gram of water changes from liquid to solid at a constant pressure of 1.00 atm and a constant temperature of 0°C. In the
2 answers
asked by
Nate
1,332 views
A 26.0 g sample of ice at -17.0°C is mixed with 124.0 g of water at 81.0°C. What is the equilibrium temperature?ºC.
2 answers
asked by
Eliza
1,306 views
Dry saturated steam at 100'C is passed into 250gm of a mixture of ice and water contained in a calorimeter of thermal capacity
2 answers
asked by
O.E Olaleye
1,227 views
What mass of steam at 100¡ãC must be mixed with 388 g of ice at its melting point, in a thermally insulated container, to
2 answers
asked by
jes
1,208 views
200 g of ice at 0ºC put in 500 g of water at 20C. The system is in a
container with negligible heat capacity and which is
3 answers
asked by
Zhenya
1,193 views
in an enclosed container , 100g of ice at -10c and 200g of water at 25 c are mixed. Determine the amount of heat required to
1 answer
asked by
EBRAHIM
1,163 views
1100g of ice at -50C is mixed with 100g of steam at 120C. Find out how much ice melts? The implied final temperature is 0C.
Cice=
3 answers
asked by
jeff
1,161 views
Explain why the potential energy increases when ice starts to melt an becomes liquid water.
The particles form a more ordered
6 answers
asked by
JennyKen
56 views
Calculate the heat in kilojoules needed to condense 185g of steam at 100 ∘C.
2 answers
asked by
Alex
1,133 views
1. How much heat is added to 40.0 g of ice at –20 o C to convert it to steam at 120 oC?
2. How much heat is added to 25.0 g of
1 answer
asked by
Briana
1,030 views
A 100g piece of ice at 0 degrees celcius is placed into a container holding 200g of water, initially at temperature 25 degrees
1 answer
asked by
Betty
1,042 views
At what temperature would you expect dinitrogen pentoxide to sublime?
N2O5(s)-->N2O5(g) N2O5(s)= DELTA H -43.1 N2O5(s)= S
2 answers
asked by
MARY
1,018 views
How many grams of ice at -11.2 degrees C can be completely converted to liquid at 29.8 degrees C if the available heat for this
2 answers
asked by
Lauren
976 views
A 0.0500 kg ice cube at -30.0◦C is placed in 0.400 kg of 35.0◦C water in a very well insulated container.
What is the final
2 answers
asked by
Anonymous
946 views
How much heat is released when 75.0 g of steam at 100.0 c is cooled to ice at -15.0c?
I'm using 6.01 kl/mol for fusion of water,
1 answer
asked by
Kurt
914 views
How much heat in kilojoules is evolved in converting 1.00 mol of steam at 145 Celsius to ice at -50 Celsius?
2 answers
asked by
nano
886 views
Calculate the heat required to convert 5gm of ice at 0oc into 5gm of steam at 100oc.
3 answers
asked by
Siddharth
873 views
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Parent Categories (22)
Chemistry
Energy
Energy Conversion
Enthalpy
Entropy
Free energy
Glass
Heat and Energy
Heat and Temperature
Heat Change
Heat Transfer
Physical Chemistry
Physical Science
Physical States of Matter
Physics
Physics / Thermodynamics
Physics or Chemistry
Properties of Water
Specific Heat and Heat Transfer
States of Matter
Temperature and Heat Transfer
Thermodynamics