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Thermodynamics
Page 8
Questions (11,685)
How many grams of water at 20°C are necessary to change 800g of water at 90°C to 50°C?
1 answer
asked by
Ben
486 views
In a physics lab experiment, a student immersed 205 one-cent coins (each having a mass of 3.00 g *.003kg) in boiling water.
4 answers
asked by
Tia
2,229 views
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:
P4(g) + 10 Cl2(g) →
3 answers
asked by
yr
1,567 views
Calculate the temperature (in ºC) to which silver ore, Ag2O, must be heated to spontaneously decompose the ore to oxygen gas
6 answers
asked by
M
1,174 views
Calculate the Calorimeter Constant (Ccal) if 25.00 g of water at 51.50°C was added to 25.00 g of water at 25.00 °C with a
2 answers
asked by
Mary
1,185 views
How much work is done by 3 moles of gas when they triple their volume at a constant temperature of 400 K ?
show work please
1 answer
asked by
julide
1,166 views
Calculate the molar enthalpy of solidification when 10.00KJ of energy are lost as 30.00g water are frozen at 0*C.
i divided
4 answers
asked by
miyabi
1,115 views
Given the same amount of water, how does pot size affect the amount of time it takes to boil water?
1 answer
asked by
Trash bin
93 views
The density of a gas is 1.96 g L–1 at 1.00 atm and 0
°C. What is the density of this gas at 0.855 atm and 25.0 C?
5 answers
asked by
Anonymous
3,956 views
What does the second law of thermodynamics say about entropy?
A. Only changes in entropy can be measured. B. The entropy in a
4 answers
asked by
Morgan
1,062 views
What is the length of an aluminum rod at 65 degress celcius if its length at 15 degrees celcius is 1.2 meters?
Finallength-initia
2 answers
asked by
Mirayah Robinson
646 views
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L
6 answers
asked by
richard
892 views
How much energy is evolved during the reaction of 48.7 g of Al, according to the reaction below? Assume that there is excess
3 answers
asked by
Brandee
1,752 views
The standard enthalpies of formation of ions in aqueous solutions are obtained by arbitrarily assigning a value of zero to H
7 answers
asked by
Willy
8,164 views
The thermodynamic equilibrium constant for the following reaction is 0.15 at 1227°C.
2 SO2(g) + O2(g) 2 SO3(g) Which is true?
2 answers
asked by
carla
811 views
2. (a) Given the following equations and H0rxn at 250C
H3BO3(aq) �¨ HBO2(aq) + H2O(l) ∆H0rxn = -0.02kJ H2B4 O7(s) + H2O(l)
2 answers
asked by
ceasar3
522 views
Glycine is the amino acid used to make proteins
a)for each mole of glycine that burns,973.49k/mol of which is libarated eqution
1 answer
asked by
Gift
481 views
A plastic bag is filled with 1 ft3 of air at 17° C at atmospheric pressure. What is volume at 2 atm pressure?
1 answer
asked by
serena
437 views
Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J
10 answers
asked by
amela
541 views
The Go’ value for the hydrolysis of glucose-6-phosphate is -13.8 kJ/mol. Assuming a concentration of 4 mM for this molecule,
5 answers
asked by
Lena
711 views
Consider the specific heats H2O(s) =2.09 J/g ¡¤◦C,H2O (§¤) = 4.18 J/g ¡¤◦C, and H2O(g) = 2.03 J/g ¡¤◦C. The heat
3 answers
asked by
gabriella
968 views
Calculate ∆G0 for the following reaction.
4XY + 3Z2−→2Z3X2+ 2Y2 Substance ∆H0f S0kJ/mol J/mol·K XY 205.0 75.0 Y2 −82.0
5 answers
asked by
Gabriella
4,812 views
A sample consisting of 2 moles of diatomic perfect gas molecules at 250K is compressed reversibly and adiabatically until its
1 answer
asked by
Rudo Kanukamwe
733 views
find the temperature of the hot reservoir of a carnot engine that has QH=1575j that does work on a 200kg crate, caussing it to
1 answer
asked by
Claire
402 views
An ideal gas, Cp = (5/2)R and Cv = (3/2)R, is changed from P = 1 bar and
V{ = 12 m3 to P2 = 12 bar and V2 = 1 m3 by the following
3 answers
asked by
Sarah
1,378 views
K/U The enthalpy of reaction for a neutralization reaction is to be determined by mixing dilute solutions of an acid and a base
3 answers
asked by
Blessing
666 views
Potato flakes (moisture content = 75% wet basis) are being dried in a concurrent flow drier. The moisture content of the air
4 answers
asked by
MARIA
929 views
Specific Heats for Several Common Metals J g^-1 °C^-1
AI - 0.903 Cu- 0.385 Fe- 0.449 K- 0.757 Pb- 0.128 Zn- 0.388 b) Which metal
3 answers
asked by
i need help :(
547 views
If a 50.0g silver spoon at 20.0 degrees C. How much heat does the spoo absorb from the coffee to reach a temperature of
2 answers
asked by
Lady T.
548 views
What amount of energy is required to melt a 26.9 g piece of ice at 0oC?
The heat of fusion of ice = 333 Jg-1 Heat required to
2 answers
asked by
tanner
886 views
What is the total translational kinetic energy of the gas molecules of 0.470 mol of air at atmospheric pressure that occupies a
1 answer
asked by
opp
471 views
every stage is eventually returned to which final stage?
4 answers
asked by
Laruen
602 views
A sample of gas in a 21.5-L container at 45 degrees Celsius is cooled at constant pressure to a temperature of -37 degrees
3 answers
asked by
Layney
586 views
when steam is passed over white hot coke at 1000°C, the product obtained is?
2 answers
asked by
kiaan
61 views
25 kg of ice at 0° C is combined with 4 kg of steam at 100° C. What is the final equilibrium temperature in ° C of the
5 answers
asked by
Maya
6,105 views
How many kilojoules are released when 115 g of Si reacts with chlorine?
Si(s)+2Cl2(g)→SiCl4(g)ΔH=−657kJ
3 answers
asked by
Alex
709 views
When 1.0 mole of liquid Br2 is converted to Br2 vapour at 25.0oC and 1.0 atm pressure, 7.3 Kcal of heat is absorbed, and 0.59
3 answers
asked by
sam zahrani
349 views
Bromobenzene, C6H5Br, and chlorobenzene, C6H5Cl, form essentially ideal solutions in all proportions. At 100°C, the equilibrium
6 answers
asked by
lulu
1,609 views
A container of hot liquid is placed in a freezer that is kept at a constant temperature of 10°F. The initial temperature of the
4 answers
asked by
Sarah
2,636 views
DrBob222 PLEASE HELP
Hf of CO2 = -393.5 kJ/mol Hf of H2O = -285.8 kJ/mol The combustion reaction for benzoic acid C6H5CO2H(s) +
5 answers
asked by
Rachel M
2,388 views
Pls help
In which case would connect energy of particles be increasing? A metal is heated at 1300°C B metal is heated from room
14 answers
asked by
Anonymous
2,797 views
What is the molar enthalpy of combustion of magnesium? This was the lab question that I was asked to find after performing a lab
2 answers
asked by
Chase (sorry if this long)
1,299 views
A cylinder with a moveable piston contains 0.2 kg of water at 100 ºC.
The density of the water ρw =1000 kg/m3 and that of steam
2 answers
asked anonymously
146 views
An aluminum can is filled to the brim with a liquid. The can and the liquid are
heated so their temperatures change by the same
2 answers
asked anonymously
140 views
Explain thermal electric effect and the thermocouple
1 answer
asked by
Kalu prosper
118 views
Study the scenario.
The particles in a system are moving around very slowly. A few minutes later, the particles are moving, on
19 answers
asked anonymously
196 views
Temperature is defined as __________.
Responses a measure of the average potential energy of a particle in the system a measure
2 answers
asked anonymously
134 views
temperature of the layers
2 answers
asked by
bonia
91 views
If 30cm3
of a gas at 50oC is warmed to 80oC at a fixed pressure the fractional increase in volume is A. 0.093 B. 1.090 C. 0.009
2 answers
asked anonymously
71 views
Internal energy
2 answers
asked by
Fuad Faji Femal
70 views
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