Questions LLC
Login
or
Sign Up
Ask a New Question
Phase Change
Page 4
Questions (188)
How much heat (in kJ) will it take to bring 56 kg of ice at -8°C to dry steam? Answer to 3 significant figures
2 answers
asked by
Anonymous
506 views
Imagine that 25.0 of ice at -3.0C is placed in a container holding water vapor at temperature of 120.0C . After a certain amount
2 answers
asked by
Fajer
544 views
determine the quantity of heat needed to convert 17.0g of solid mercury at -50.0C to mercury vapor at 25C . Specific heats: ,
2 answers
asked by
Laura
547 views
How much heat must be removed from 500 grams of water at 0 degrees C to form ice at 0 degrees c?
2 answers
asked by
Anon
502 views
given the following info for water molar heat of vaporization 40.6kj/mol calculate the total quanity of heat evolved when 10.0g
2 answers
asked by
jules
533 views
An ice cube tray full of water is put into a freezer, which energy occurs in the particles in the water as it undergoes a phase
1 answer
asked anonymously
53 views
vapor enthalpy energies kj/mol 40.66, specific heat capacities j/g degrees c s(s) 2.1, fus 6.01 enthalpy energies kj/mol 6.01
1 answer
asked by
paula
498 views
Calculate ∆S universe for the process H2O (s) → H2O (l) given that
∆Hfusion = 6.02 kJ/mol and ∆S system = 22.1 J/K mol .
1 answer
asked by
Mi
480 views
Assume that the pressure is one atmosphere and determine the heat in joules required to produce 2.99 kg of water vapor at 100.0
1 answer
asked by
Tim
497 views
2. Suppose you pour 15 g of hot water (at 55 oC) into a glass that contains 20 g of ice (at - 10 oC). Neglect the heat absorbed
3 answers
asked by
Jonathan
487 views
A chunk of 0 C ice, mass 145g, is dropped into 75g of water at 62 C. The heat of the fusion of water is 335J/g. What is the
2 answers
asked by
Amanda
474 views
Calculate the S(univ) for the following phase change at 25 deg celcius. The boiling point of heptane is 98.0 Celcius and has a
1 answer
asked by
Jared
493 views
If the ΔH for H2O(l) → H2O(s) is -6.01 kJ, then what is the ΔH for 2H2O(s) → 2H2O(l)?
A -6.01 kJ B. 6.01 kJ C. -12.02 kJ D.
2 answers
asked by
Leanne
465 views
Please help
how much heat is needed to transform a 2.5 kg block of ice at -4°c to a puddle of water at 12°c? Cwater=4200J kg^-1
1 answer
asked by
wai
447 views
Can you give me awebsite about phase change?
1 answer
asked by
jhon
453 views
A scientist is interested in learning more about water’s phase change properties. The scientist decides to perform an
1 answer
asked anonymously
27 views
A scientist is interested in learning more about water’s phase change properties. The scientist decides to perform an
1 answer
asked anonymously
33 views
12.
An ice cube tray full of water is put into a freezer. Which energy change occurs in the particles in the water as it
5 answers
asked by
Amanda
25 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 anonymously
52 views
in different parts of a car air conditioner a liquid changes to a gas and a gas changes to a liquid.
a)which of these changes
1 answer
asked by
Emma
460 views
A sample of nitrogen gas is at 37°C (99°F). If heat is removed from the sample, its temperature will _______, and it could
1 answer
asked by
r r
25 views
Which list below correctly describes how adding heat energy affects water during a phase change and not during a phase change.
a
1 answer
asked by
yoyo808
24 views
At 100 degrees Celsius. Heat of vaporization is 40.66 kj/mol for water. Calculate the quantity of heat that is absorbed/released
1 answer
asked by
Nadia
27 views
Which action occurs as a substance undergoes a phase change from a solid to a liquid? explain
a The intermolecular attractive
1 answer
asked anonymously
24 views
Which statement about the energy of a phase change is true?
Melting is an endothermic change, because ice absorbs energy from its
1 answer
asked by
e
58 views
Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?
Dry ice
1 answer
asked by
e
37 views
Which statement about the energy of a phase change is true?
Melting is an exothermic change, because ice absorbs energy from its
1 answer
asked by
e
60 views
If enough thermal energy is removed from the container to cause a change in state, which statement best describes what will
1 answer
asked by
Um?
92 views
This graph shows the phase change for water. Which section of this graph would represent the liquid state of water?(1
1 answer
asked by
dee
61 views
When the kinetic energy of molecules decreases, which phase change occurs?(1 point)
Responses Sublimation Sublimation Melting
1 answer
asked by
@~@
57 views
A student completes a problem solving for the energy change that occurs when steam condenses on a glass to form condensation as
1 answer
asked by
lol
30 views
Multiple Choice Question
The graph below shows the phase change for H2O. Which statement best describes what is occurring at
1 answer
asked anonymously
29 views
This graph shows the phase change for water.
Which statement best describes what is happening at portion C? (1 point) Responses
1 answer
asked anonymously
34 views
Maya heats a liquid until it changes to a gas. What type of change occurs to the liquid?
1 answer
asked anonymously
19 views
A solid turn into a gas if enough blank is added
1 answer
asked anonymously
7 views
Glass starts out as a mixture of mostly solid sand particles. However, in order to mold or blow glass, the particles must change
1 answer
asked anonymously
4 views
Glass starts out as a mixture of mostly solid sand particles. However, in order to mold or blow glass, the particles must change
1 answer
asked by
shhh
6 views
When you freeze water, it will change from a ___________
(1 point) Responses solid to a liquid. solid to a liquid. liquid to a
1 answer
asked by
.p.r.i.n.c.e.
7 views
Pages
1
2
3
4
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