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Thermodynamics
Page 3
Questions (11,677)
If a copper calorimeter of 100g mass containing 200g of water was used. The thermometer contained 0.8 centimeter cube of mercury
8 answers
asked by
Mikee
2,713 views
The molar heat of vaporization of water is 42 kJ/mol. How much energy is released by the condensation of 3.0 g of water?
So for
4 answers
asked by
Rachel
4,981 views
At what temperature will the root-mean-square speed of oxygen molecules have the value of 640 m/s? 1 kilomole of oxygen has a
4 answers
asked by
christ
914 views
Calculate the work done in joules when 1.0 mole of water vaporizes at 1.0 atm and 100C. Assume that the volume of liquid water
5 answers
asked by
Monty
12,414 views
Complete the table relating the values of Δ𝐺∘ and 𝐾 .
Δ𝐺∘ K <0 =0 >0 K can be =1, <1, or >1
4 answers
asked by
Anonymous
11,906 views
A pipe of length 10.0 m increases in length by 1.5 cm when its temperature is increased by 90°F. What is its coefficient of
5 answers
asked by
Jesse
4,888 views
calculate the heat required to change 0.50kilogram of water at 40°celcius to steam at 100°celcius.(take latent heat of
7 answers
asked by
Benjamin
1,036 views
3.) A 5.00 x 10^2 g block of metal absorbs 5016 joules of heat when its temperature changed from 20 degrees C to 30 degrees C.
5 answers
asked by
mhaidar9108
6,599 views
what is the Ka for ethylammonium cation,C2H5NH3^+, at 25 celsius?(Kb for C2H5NH2=4.7x10^-4 at 25 Celsius)
5 answers
asked by
Bb
5,353 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
8,152 views
What mass of liquid water a t room temperature (25°C) can be raised to its boiling point with the addition of 40.0 kJ of
6 answers
asked by
Anonymous
5,518 views
Under constant pressure, a system of gases is sealed in a cylinder and then allowed to expand. What can you conclude about the
11 answers
asked by
jessie
3,461 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
3,077 views
The volume of a sample of ideal gas at 25*C is 372ml. What will be the volume of the gas if it is heated at constant pressure to
5 answers
asked by
Josh
2,413 views
The ?H of the reaction below is -575.13 kJ. Is this reaction spontaneous?
2ZnS + 3O2 + C ? 2SO2 + 2Zn + CO2 A. It is not because
5 answers
asked by
Morgan
1,955 views
A 3.00 gram lead bullet travels at a speed of 240 m/s and hits a wooden post. If half the heat energy generated remain with the
4 answers
asked by
Nina
3,434 views
What pressure (in atmospheres) will be exerted by 1.3 moles of gas in a 13 litre flask at 22 degrees Celcius? (Gas constant (R)
4 answers
asked by
Anonymous
3,218 views
Calculate the amount of energy in kilojoules needed to change 225 g of water ice at -10 C to steam at 125 C. The following
5 answers
asked by
Eddie
6,879 views
[10:58am]: Wn 4.5g of liquid water was formed by burning hydrogen gas in oxygen,-72kj of heat was given off.calc d standad heat
5 answers
asked by
Hayur
1,086 views
Find the ΔHr0 for the reaction:
Na2CO3(s) +2HNO3(aq) → 2NaNO3(s) +CO2(g) +H2O(l) ΔHr0=+125.7kJ ΔHr0=-67.2kJ ΔHr0=-45.3kJ
5 answers
asked by
Anna
2,292 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
4,522 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
2,080 views
Calculate the entropy change in the surroundings when 1.00 mol N2O4(g) is formed from 2.00 mol NO2(g) under standard conditions
4 answers
asked by
chemstudent
5,040 views
Calculate the calorimeter constant if 25g of water at 50C was added to 25g of water at 25C with a resulting temperature of 35C?
T
4 answers
asked by
Lance
1,441 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
3,132 views
Which of the following substances shown should the standard heat of formation (\DeltaΔHfo be zero at 25oC
GaPO4 (aq) As (l) Ar
4 answers
asked by
Sara
620 views
a sample of helium gas has a volume of 1.25L at -125celcius and 50.0atm. the gas is compressed at 50.0 atm to volume of 325ml.
7 answers
asked by
Mckee
1,697 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
1,320 views
If 3.20 kcal of heat is added to 1.00 kg of ice at 0 degrees C, how much water at 0 degrees C is produced, and how much ice
4 answers
asked by
Anonymous
2,950 views
A metal rod is 40.125 cm long at 20 °C and 40.148 cm long at 35 °C. calculate the coefficient of linear expansion of the rod
4 answers
asked by
selena
3,067 views
The pressure guage on the steam condenser for a turbine indicates 26.2 in. Hg of vacuum. The barometer reading is 30.4 in. What
4 answers
asked by
paru
1,733 views
If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the water and the calorimeter
4 answers
asked by
Anonymous
2,916 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
4,363 views
22.) The molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat
4 answers
asked by
Adriana
3,660 views
A STP of a certain mass of gas occupies a volume of 800cm cube. find the temperature at which the gas occupies 940cm cube and
4 answers
asked by
Omotosho Silas Segun Ayobami
632 views
how many joules of heat are needed to heat 900.0g water from 18.0 C to 98.0 C?
4 answers
asked by
Maci
915 views
The combustion of carbon monoxide is represented by the equation below:
CO (g) + 1/2O2 (g) ----> CO2 (g) a) determine the value
4 answers
asked by
Nick
1,098 views
Object A has a temperature of 3t. It comes in contact with object b,which has a temperature of 2t. Which of the following is
4 answers
asked by
..
817 views
A
glass bottle full of mercury has a mass 500g. 35°C, 2.43g of mercury are expelled. Calculate the mass of f mercury remaining
3 answers
asked by
Ikk
868 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
1,139 views
calculate the volume occupied by 10^22 molecules of a gas 300 k and 760 mm pressure.
please help me please...................
4 answers
asked by
abby
4,081 views
The thermochemical equation for the combustion of hexane is shown below.
2 C6H14 (g) + 19 O2 (g) → 12 CO2 (g) + 14 H2O (g)
3 answers
asked by
Hunter
1,304 views
When 1 gram of liquid water at 0 degrees Celsius freezes to form ice, how many total calories of heat are lost by the water and
3 answers
asked by
Angie
2,226 views
Why is the process of examining enthalpies of a reaction helpful?
A. It helps in determining how a reaction occurs spontaneously.
2 answers
asked by
Morgan
1,025 views
how much heat is needed to convert 500g of water at 100 degrees C to steam at 100 degrees C?
3 answers
asked by
t
1,166 views
Liquid water boils at 100 degrees C. In other words, this is the temperature at which the thermal energy between two molecules
2 answers
asked by
Ana
928 views
Kate is creating two models to describe the effect of thermal energy on the movement of particles in a liquid. She draws the
5 answers
asked by
@~@
35 views
Determine if each statement is true or false.
Removing thermal energy decreases kinetic energy. The amount of thermal energy in a
1 answer
asked by
LostCoward
59 views
What happens when thermal energy is applied to water?(1 point)
Responses Its molecules gain kinetic energy. The water creates
5 answers
asked anonymously
19 views
At 32°C and 205 kpa gauge. The specific weight of a certain gas was 13.7 N/m³. Determine the gas constant of this gas.
7 answers
asked by
Aaron
6,213 views
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