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Thermodynamics
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Questions (11,563)
Camphor (C10H16O) has a heat of combustion of 5903.6 kJ/mol. When a sample of camphor with a mass of 0.124 g is burned in a bomb
5 answers
asked by
Nisah
3,096 views
1.10 g of glucose was completely burnt in a copper calorimeter. The temperature of the water
increased from 25.85 °C to 36.50
4 answers
asked by
Justin
2,058 views
Calculate the molar entropy of vaporization for liquid hydrogen iodide at its boiling point -34.55 degrees celcius. HI(l) <=>
5 answers
asked by
Amy
1,845 views
An ideal monatomic gas expands isothermally from 0.590 m3 to 1.25 m3 at a constant temperature of 670 K. If the initial pressure
4 answers
asked by
Allie
2,230 views
The standard heat of combustion of eicosane, C20H42 (s), a typical component of candle wax, is -1.332 x 104 kJ/mol (consider
5 answers
asked by
Anonymous
4,673 views
Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity,
CH3CH20H(l)+ 3O2(g)---> 2CO2(g)+3H2O
5 answers
asked by
Sophie
8,308 views
a bicycle tire that has a volume of 0.85L is inflated to 140 pounds per square inch. What will be the pressure in the tire if
4 answers
asked by
Bryan
1,166 views
A Styrofoam bucket of negligible mass contains 1.75 kg of water and 0.450 kg of ice. More ice, from a refrigerator at -15.0
3 answers
asked by
Marthin
1,208 views
Naphthalene combustion can be used to calibrate the heat capacity of a bomb calorimeter. The heat of combustion of naphthalene
3 answers
asked by
John
3,089 views
Bomb calorimetry is best for determining heat values. Because we cannot have a bomb calorimeter for every pair of students, we
3 answers
asked by
just need help
3,094 views
Find the Data given and solve it, If the thermal energy of a metal with specific heat capacity of 40j/kgk is 15j, find the
2 answers
asked by
Mubarak b Hassan
288 views
Milk is flowing through a heat exchanger at a rate of 2000kg/h. he heat exchanger supplies 111,600kJ/h. The outlet temperature
6 answers
asked by
Janice
3,482 views
Fifty grams of hot water at 80oC is poured into a cavity in a very large block of ice at 0oC. The final temperature of the water
5 answers
asked by
Ceres
4,070 views
A 46.2 gram sample of copper is heated to 95.4 degrees celcius and then place into a calorimeter containing 75.0 grams of water
5 answers
asked by
lyne
3,931 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
2,376 views
Consider the evaporation of methanol at 25.0 c: CH3OH(l)-- CH3OH(g)
I figured out that Delta G is 4.3 kJ. Find the Delta G at 25
4 answers
asked by
JP
3,820 views
The standard enthalpy of formation of Mn2O3 is −962.3 kJ/mol. How much heat energy is liberated when 6.4 grams of man- ganese
4 answers
asked by
Gabriella
7,700 views
At a temperature of 20°C, the volume V (in liters) of 1.33 g of O2 is related to its pressure p (in atmospheres) by the formula
5 answers
asked by
Anonymous
6,008 views
When 72 grams of a metal at 97.0oC is added to 100.0 grams of water at 25oC, the final temperature is 29.1oC. What is the
6 answers
asked by
Anonymous
3,153 views
A flask is filled with 1.53 L (L = liter) of a liquid at 92.2 °C. When the liquid is cooled to 15.1 °C, its volume is only
5 answers
asked by
Micah
3,522 views
Lead has a melting point of 327ºC, its specific heat is J/g•deg, and its molar enthalpy of fusion is 4.80 kJ/mol. How much
5 answers
asked by
steph
4,437 views
If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol?
A. -4 kJ/mol B. -0.004 kJ/mol C.
9 answers
asked by
princess
8,139 views
How much heat, in kilojoules, is associated with the production of 273kg of slaked lime, Ca(OH)2?
CaO(s)+H2O(l)-->Ca(OH)2(s)
6 answers
asked by
Lisa
5,545 views
Calculate the enthalpy change for the following equation:
NO(g)+ 1/2O2(g) -----> NO2(g) I have no clue how to do this. I just
5 answers
asked by
Ana
3,065 views
a considerable amount of heat is required for the decomposition of aluminum oxide.
2Al2O3-> 4Al(s)+ 3O2(g) change in heat= 3352KJ
5 answers
asked by
Skye
6,191 views
How do you do this?
If 100 grams of boiling water at 100 degrees C is poured into a 100 g beaker of platinum at 0 degrees C, an
5 answers
asked by
Emma
1,862 views
Can anyone help me with these three questions?
Predict the sign of delta S° and then calculate delta S° for each of the
5 answers
asked by
Anonymous
9,447 views
heat of combustion of propane c3h8, 2220KJ/mol. the specific heat of copper is 0.385 J/g*C. How many grams of propane must be
5 answers
asked by
Cassandra
4,437 views
How much heat, in kilojoules (kJ), is required to raise the temperature of 2.50kg Hg(l) from -20.0 to -6.0C? Assume a density of
6 answers
asked by
Bob
4,483 views
A 1.000 gram sample of the rocket fuel hydrazine (N2H4) is burned in a bomb calorimeter. The temperature rises from 24.62°C to
4 answers
asked by
Evelyn Genao
4,509 views
Iron has a heat capacity of 0.45 J/g/◦C. If a
100 g sample of iron at an initial temperature of 50◦C absorbs 400 J of energy,
4 answers
asked by
Sammy
694 views
For a certain reaction, ΔH° = –76.8 kJ and ΔS° = –225 J/K. If n = 3, calculate E° for the reaction at 25°C.
7 answers
asked by
Tayla
4,311 views
Given the thermodynamic data in the table below, calculate the equilibrium constant for the reaction:
2SO2(g)+O2--> 2SO3
4 answers
asked by
Sara
7,435 views
Please explain the answer.
Which statement about this reaction is correct? 2Fe(s)+3CO2(g)--->Fe2O3(s)+3CO(g) delta H = 26.6 kJ A.
5 answers
asked by
Anonymous
3,857 views
A quantity of monatomic ideal gas expands adiabatically from a volume of 2.0 liters to 6.0 liters. If the initial pressure is
4 answers
asked by
Alex
3,329 views
Ice is given thermal energy and begins to melt while remaining at the same temperature. Which changes happen to the molecules of
5 answers
asked by
Warrior Cat Lover
1,312 views
How much heat is evolved when 1258 g of water condenses to a liquid at 100.°C?
4 answers
asked by
samantha
2,572 views
A 25 gram piece of metal is sitting in a beaker of boiling water. The metal is taken out of the beaker and quickly placed in a
5 answers
asked by
ANNIE
2,413 views
The bond enthalpy of the Br–Cl bond is equal to DH° for the reaction
BrCl(g)-> Br(g) + Cl(g). Use the following data to find
3 answers
asked by
April
3,718 views
How much heat will be released if 30 g of octane is burned in excess of oxygen?
C8 H18 + 12.5 O2 yields 8CO2 + 9H2O Delta H=
4 answers
asked by
KF
3,512 views
The enthalpy of atomisation is the enthalpy change upon breaking the bonds of 1 mole of a gaseous compound into its atom
4 answers
asked by
Jack
1,179 views
What mass of ice is needed to cool 60g of water from 43oC to 20oC
4 answers
asked by
sam
1,223 views
1. What happens if our calorimeter is not properly insulated..what effect will it have on our calculated specific heat capacity
4 answers
asked by
Precious
3,531 views
An insulated beaker contains 300g of water initially at 30 degree celsius. water at 100 degree celsius is added until the
4 answers
asked by
annie
2,725 views
A hydrocarbon sample was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.00 kg of water rose from
4 answers
asked by
lavonne
1,529 views
A 410-g cylinder of brass is heated to 95.0°C and placed in a calorimeter containing 335 g of water at 25.0°C. The water is
4 answers
asked by
Allie
1,013 views
The specific heat of granite is 0.80 kJ/kg·°C. If 2.0 MJ of heat are added to a 100−kg granite statue of James Prescott
4 answers
asked by
Anonymous
1,131 views
CONTINUE>>>>>>>>>>>
The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2---->C2H4 Delta H 1 (there
3 answers
asked by
Anonymous
1,067 views
Ammonia (NH3) boils at -33oC; at this temperature it has a density of 0.81 g/cm3. The enthalpy of formation of NH3(g) is
3 answers
asked by
Morgan
1,963 views
i.imgur. com/VWFwb. png
3 answers
asked by
Matthew
727 views
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