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Thermodynamics
Page 6
Questions (11,685)
The temperature outside marys school is 17°c at midday by midnight the temperature has fallen by 33 °c what is the temperature
4 answers
asked by
Rio
1,223 views
Reaction: 1/2N2 + 3/2H2 --> NH3
Delta H = -46Kj/mol 1) Find delta H n(NH3)formed=5 mol. M(NH3=8.5g) 2) Find delta H a)3 mol H2 +
4 answers
asked by
Christine
596 views
Calculate the change in internal energy of 2kg of water at 90 degree Celsius when it is changed to
3.30m3 of steam at 100oC . The
4 answers
asked by
christ
436 views
Which statement best describes heat?
1. Heat flows from hot to cold and is a form of thermal energy 2. Heat flows from cold to
3 answers
asked anonymously
365 views
The temperature of some water in a bottle can be measured with a/an
3 answers
asked anonymously
27 views
If 75 grams of ice at 0 degrees celsius were added to 1.5 Liters of water at 75 degrees celsius, what would be the final
1 answer
asked by
Anonymous
459 views
In an experiment, 23.0 g of ice at –25°C is converted into steam with a temperature of 124°C. How much heat is required for
2 answers
asked by
Stephen
612 views
Iron(III) oxide can be reduced by carbon monoxide.
Fe2O3(s) + 3CO(g) 2Fe(s) + 3CO2(g) Use the following thermodynamic data at 298
3 answers
asked by
Bea
1,452 views
determine the final temperature of a system after 100.0g of zinc ( specific heat .3876 J/g c) at 95.0 C is immersed into 50.0 g
2 answers
asked by
Cece
1,235 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
929 views
Strictly speaking, NO system can be completely closed - for example, hot liquid in the best thermos eventually cools down - but
4 answers
asked by
Student12
648 views
c= q/m*(delta)T
q= heat or energy, measured in joules (J) c= specific heat of the substance m= mass of substance (delta)T= change
3 answers
asked by
waffles
801 views
The enthalpy of solution of nitrous oxide (N2O) in water is -12 kJ/mol and its solubility at 20 oC and 1.00 atm is 0.121 g per
2 answers
asked by
Raoul
775 views
1.20 g of hydrogen gas is completely burned in the presence of excess oxygen gas in a bomb calorimeter producing water. The heat
3 answers
asked by
Tegan
674 views
Calculate the heat of formation of water from its constituent elements from the following information:
3 H2 (g) + O3 (g) → 3H2O
2 answers
asked by
blahblah
638 views
A reaction has ÄH = -378 kJ and ÄS = -37 J/K. Calculate ÄG at 25°C to confirm that the reaction is spontaneous.
in kJ
2 answers
asked by
maddy
630 views
A brass of length 10m increases 100.5 m, when heated from 50 degree centigrade 100 degree centigrade calculate its linear
3 answers
asked by
Ziggy
48 views
Click on the "Energy" button at the bottom of this simulation. Add 4 pumps (200 particles) and start changing Temperature (first
1 answer
asked anonymously
48 views
Sample of gas has a volume of 500 degree celsius what volume will the gas occupy at 0 degrees Celsius when the pressure remains
1 answer
asked by
TOP ELLA
39 views
A metal plate is a 1 m square at 283 K. There is a hole of 600 mm in diameter in the The linear coefficient of expansion of the
1 answer
asked by
ADIVHAHO
51 views
A metal plate is a 1 m square at 283 K. There is a hole of 600 mm in diameter in the The linear coefficient of expansion of the
2 answers
asked by
ADIVHAHO
34 views
W17.The pV-diagram of figure below shows a series of thermodynamic processes.
In process ab, 150J of heat is added to the system;
1 answer
asked by
Jeremiah latkuoth
50 views
What is the best description of thermal energy?(1 point) Responses
Thermal energy is a measure of an object or substance’s
1 answer
asked by
.
25 views
Question
Thermal energy is the motion of particles in a substance at a given temperature. Substances absorb light energy from the
1 answer
asked anonymously
33 views
In a building,air moves due to currents caused by temperature differences.which statement best describes these currents?(1point)
1 answer
asked anonymously
29 views
Area Temperature (ºC)
downstairs 22 upstairs 26 Which statement best explains the temperature difference? Warm air rises by
1 answer
asked by
sui
16 views
A steel ball has a diameter of 60mm and is 0,01mm too large to pass through a hole in a brass plate when the ball and the plate
1 answer
asked anonymously
8 views
the temperature 273.15 K is equivalent to:
6 answers
asked anonymously
99 views
A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to
5 answers
asked by
Akbar
4,824 views
an unknown substance with mass of 1.2 kg loses 32 kJ of thermal energy. which causes the temperature to drop from 364.0 k to
2 answers
asked anonymously
135 views
When a solution containing 8.00 g NaOH in 50.0 g of water at 25 °C is added to a solution of 8.00 g of HCl in 250.0 g of water
5 answers
asked by
Karla
4,118 views
Energy is added to a piston-cylinder arrangement. The piston is withdrawn in such a way that the temperature remains constant.
5 answers
asked by
chris
5,049 views
LEAD IS A SOFT, DENSE METAL WITH A SPECIFIC HEAT OF 0.028KCAL/KGC, A MELTING POINT OF 328.0C, AND A HEAT FUSION OF5.5KCAL/KG.
7 answers
asked by
Jessica
4,427 views
The temperature 273.15k is equivalent too.
2 answers
asked anonymously
51 views
an unknown substance with mass of 1.2kg loses 32 kJ of thermal energy. which causes the temperature to drop from 364.0 k to
2 answers
asked anonymously
141 views
A gas has a volume of 4.25 m3 at a temperature of 95.0°C and a pressure of 1.05 atm. What temperature will the gas have at a
4 answers
asked by
Science
2,417 views
A reaction is always non-spontaneous when
a. ∆H>0, ∆S>0 b. ∆H>0, ∆S<0 c. ∆H<0, ∆S<0 d. ∆H<0, ∆S>0 Gibb's Free
3 answers
asked by
cherry
1,018 views
Which of the following four processes are accompanied by an increase in entropy?
1. I2 (s) -> I2 (g) 2. 2 I (g) -> I2 (g) 3. 2
5 answers
asked by
Hannah
2,031 views
A substance is dissolved in water, and the temperature of the surroundings decreases. Is this process exothermic or endothermic?
3 answers
asked by
connexus
485 views
How many kJ of heat are released when 15.75 g of Ba reacts completely with oxygen to form BaO?
The enthalpy for the reaction
5 answers
asked by
Alizar Rodriguez
3,143 views
a sample of methane gas of mass 25g at 250k and 18.8atm expands isothermally until its pressure is 2.5atm. calculate the change
4 answers
asked by
sam
1,079 views
Butane (C4H10) has a heat of vaporization of 22.44 kJ/mol and a normal boiling point of -0.4 C. A 250 mL sealed flask contains
6 answers
asked by
I NEED HELP!
3,745 views
Calculate the total energy required to evaporate completely 1kg of ice that is initially -10°c
2 answers
asked by
Iloti favour
169 views
The equation of ∆Tf and ∆Tb
2 answers
asked anonymously
87 views
Inspector Watkins is called to a murder scene. The body was found stuffed in a freezer where the temperature was 10F. The
2 answers
asked anonymously
173 views
Which best describes thermal energy?
It is the difference between internal energies of two or more substances. It is the sum of
2 answers
asked by
Interesting...
160 views
What is ideal gas constant?
2 answers
asked by
Jonathan Kila
127 views
A brass of length 100m increases to 100.5m, when heated from 50 to calculate it linear expansivity
2 answers
asked anonymously
141 views
Heat sponataneously flows from a cooler object to a warmer object.
True False
1 answer
asked by
kali
149 views
A typical volume of a modern hot air balloon is 2500 cubic metres, and a typical maximum temperature of the hot air is 120
4 answers
asked by
nina Johnson
928 views
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