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Thermodynamics
Page 7
Questions (11,560)
At standard temperature, a gas has a volume of 275mL. The temperature is then increased to 130. Celcius, and the pressure is
9 answers
asked by
Chopsticks
4,645 views
Given the thermochemical equation SO2(g) + ½ O2(g) ---> SO3 (g) DH = -99.1 kJ
calculate the enthalpy change (DH) when 89.6 g of
6 answers
asked by
noshi
2,374 views
'Identify two factors that affect the change in entropy that occurs during the formation of an NaCl solution. State whether each
4 answers
asked by
SarahF275
1,554 views
A glass window with a mass of 20kg is heated to a temperature of 32C by the sun. How much thermal energy is released by the
7 answers
asked by
angelina
1,601 views
at high temperatures, ammonia decomposes to N2 and H2.
2 NH3(g)--> N2 (g) + 3H2(g) Delta H for the reaction is positive and delta
5 answers
asked by
Brunette
4,587 views
Why does hot air rise from pavement on a hot summer day?(1 point)
Responses Due to insulation Due to insulation Due to conduction
7 answers
asked by
Latina baddie ✧
292 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
3,590 views
A gas occupies a volume of 458 mL at a
pressure of 1.01 kPa and a temperature of 295 K. When the pressure is changed, the volume
6 answers
asked by
Katelyn Latino
3,220 views
The mass of 3.01 x 1023 molecules of gas is 18.0 grams. What volume does 12.0 grams of the gas occupy at STP
4 answers
asked by
lilo
658 views
Use the data in the table to calculate the Delta G0 of the following reaction at 298k:
Al2O3 ---> Delta G fusion -1582.3 HCl---->
5 answers
asked by
ramire2
1,291 views
If a gasoline engine has an efficiency of 21 percent and loses 780 J to the cooling system and exhaust during each cycle, how
5 answers
asked by
anonymous
5,749 views
The question is: What statements are true for the standard entropy change for the conversion of ozone to oxygen?
The choices to
4 answers
asked by
mar
3,109 views
A student dissolved 10.5 g of NH4Cl in 40 mL of water. The temperature of the water changed from 22.5oC to 5.1oC. Calculate the
4 answers
asked by
anaa
924 views
What is the relationship between area and volume expansivity ?
That is what is the formula connecting area and volume
7 answers
asked by
Queen
2,486 views
A heat engine operating b/n 100°c and 700°c has an efficiency equal to 40% of the maximum theoretical efficiency. How much
7 answers
asked by
Chaltu
1,341 views
What is an experimental technique that could be used to determine the enthalpy of combustion of magnesium directly? Not using
5 answers
asked by
z.
1,692 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
815 views
how many kilojoules of heat are absorbed when 1.00 L of water is heated from 18C to 85C? density of water is 1.0 g/ml
7 answers
asked by
Skye
3,942 views
Suppose the skin temperature of a naked person is 34°C when the person is standing inside a room whose temperature is 25°C.
4 answers
asked by
papito Urgent help needed
1,964 views
Given the following information:
2NaHCO3(s) + 85 kJ → Na2CO3(s) + H2O(l) CO2(g) Calculate the amount of heat (in kJ) required
5 answers
asked by
Anonymous
2,125 views
Describe an experiment to determine the saturation vapour pressure of water in the temperature range 25 degree Celsius to 70
5 answers
asked by
rita
1,233 views
a 500.0 mL gas sample at STP is compressed to a volume of 300.0 ml and the temperature is increased to 35.0 C. What is the new
7 answers
asked by
catherine
4,416 views
An average hot water tank will hold 300.0 L of water needs to be kept at 65.0OC in order to kill any bacteria in the water. If
5 answers
asked by
Naeem R
744 views
An automobile fuel tank is filled to the brim with 45.3 liters (12.1 gallon) of gasoline at 14.5 degrees C. Immediately
4 answers
asked by
Emily
2,725 views
How much energy does it take to convert 0.800 kg ice at -20.°C to steam at 250.°C?
Specific heat capacities: ice, 2.1 J g-1
4 answers
asked by
Anonymous
2,751 views
Please tell me where i went wrong.
During an all-night cram session, a student heats up a one-half liter (0.50 10-3 m3) glass
4 answers
asked by
Mary
4,265 views
A chunk of silver has a heat capacity of 42.8 J for 1ºC and a mass of 181g. Calculate the specific heat of silver.
7 answers
asked by
Meg Hat
9,980 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
3,084 views
Butane (C4H10) has a heat of vaporization of 22.44 kJ/mole and a normal boiling point of -0.4 C. A 250 mL sealed flask contains
4 answers
asked by
elizabeth
1,493 views
a 400 kg block of iron is heated from 295 k to 325 k. how much heat is absorbed by the iron? ( the specific heat is 450 j. /kg.
4 answers
asked by
michelle
1,570 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
1,653 views
A 0.10 kg piece of copper at an initial temperature of 95degC is dropped into 0.20 kg of water contained in a 0.28 kg aluminum
5 answers
asked by
y912f
4,348 views
An aqueous solution of NaCl freezes at -1.6ºC. At what temperature will it boil? Given that K(b) for water is 0.52 deg m^-1.
4 answers
asked by
steph
1,852 views
determine the specific heat of a 150.0 gram object that requires 62.0 cal of energy to raise its temperature 12.0 C.
4 answers
asked by
ada
1,734 views
3CO(g)+ Fe2O3(s) --> 2Fe(s) + 3CO2(g) + 24.7 kJ. How much heat is released when 56 grams of CO react?
4 answers
asked by
Hannah
3,421 views
It takes 333.51 joules to melt exactly 1 gram of H2O. What is the molar heat of fusion for water, from this data?
4 answers
asked by
me
1,597 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
2,649 views
The value of ^G for the following reaction is -5490 kJ. Use this value and data to calculate the standard free energy of
4 answers
asked by
Jayd
1,177 views
A 580mL sample of water was cooled from 60°C to 10°C. how much heat was lost?
4 answers
asked by
Anonymous
612 views
(1) MgCO3(s) ⟶ MgO(s) + CO2(g) ΔrH = 118.1 kJ mol−1
(2) Mg(s) + 12O2(g) ⟶ MgO(s) ΔfH =−601.7 kJ mol−1 What is the
5 answers
asked by
jhope
2,063 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
2,884 views
When 1 mol of a gas burns at constant pressure, it produces 2424 J of heat and does 6 kJ of work.
How do i calculate delta E for
4 answers
asked by
Katherine
1,621 views
An iron tyre of diameter 50cm at 15 degree celsius is to be shrunk on to a wheel of diameter 50.35cm.To what temperature must
4 answers
asked by
Samilondon
393 views
Consider the following reaction:
CO(g)+2H2(g)⇌CH3OH(g) Kp=2.26×104 at 25 ∘C. Calculate ΔGrxn for the reaction at 25 ∘C
5 answers
asked by
Ashley
5,442 views
Which has the greater amount of thermal energy, one liter of water at 50 degrees Celsius or two liters of water at 50 degrees
4 answers
asked by
Mary
2,790 views
The air in the syringe is at a pressure of 2.0×105Pa. The piston is slowly moved into the
syringe, keeping the temperature
4 answers
asked by
rida
1,761 views
What mass of octane must be burned in order to liberate 5510 kJ of heat? ΔHcomb = -5471 kJ/mol.
4 answers
asked by
nicole
3,956 views
A COPPER CALORIMETER WEIGHS 200G WHEN EMPTY AND 400G WHEN HALF-FILLED WITH WATER AT 30DEGREES.10G OF STEAM IS PASSED INTO THE
4 answers
asked by
temilade
441 views
Newton’s law of cooling states that for a cooling substance with initial temperature T0, the temperature T(t) after t minutes
4 answers
asked by
lynn
3,908 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
2,972 views
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