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Thermodynamics
Page 7
Questions (11,677)
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
7 views
the temperature 273.15 K is equivalent to:
6 answers
asked anonymously
99 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
Calculate q when 22.0 g of water is heated from 25.0°C to 100.0°C.
4 answers
asked by
Someone
9,192 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 The piston is withdrawn in such a way that the temperature remains constant.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
5,048 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
4,426 views
The temperature 273.15k is equivalent too.
2 answers
asked anonymously
50 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
2,415 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
2,030 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
483 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
3,141 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
1,076 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!
3,744 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
86 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
140 views
Heat sponataneously flows from a cooler object to a warmer object.
True False
1 answer
asked by
kali
148 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
The coefficient of expansion of a certain steel is 0.000012 per °C. The coefficient of volume expansion, in (°C) –1, is:
4 answers
asked by
PAUL
154 views
Use the following data to calculate the heat of hydration, ΔHhydr, for the ions (K+ and BrO3−) in potassium bromate (KBrO3).
2 answers
asked by
Mulovhedzi Ntodeni
127 views
Calculate the number of Joules released when 75.0 g of water are cooled from 100.0 degrees Celsius to 27.5 degrees Celsius
5 answers
asked by
Josh
2,517 views
If the price of electrical enegy is $0.10 per kilowatt *hour, find the cost of using electrical energy to heat the water in a
5 answers
asked by
Dave
2,402 views
1) Calculate the volume of air at 30 degrees C and 1.00 atm that is needed to burn completely 10.0 grams of propane. Assume that
4 answers
asked by
OhGodChemistry
3,755 views
�
= 5 9 ( � − 32 ) The equation above shows how temperature � , measured in degrees Fahrenheit, relates to a temperature
4 answers
asked by
marley j
97 views
If 100.0mL water of at 50.0C is added to 100.0 mL of water at 20.0C. What temperature would
the mixture of water reach? Assume
4 answers
asked by
beti
2,286 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
3,953 views
What is the best description of heat?(1 point)
Responses the measure of the average kinetic energy of the particles in an object
1 answer
asked by
the real BARNY THE DINO :)
365 views
Imagine that you have an ideal gas in a 7.00L container, and that 1050 molecules of this gas collide with a square-inch area of
4 answers
asked by
Chemistry
2,473 views
A container is fitted with a movable piston of negligible mass and radius r = 0.061 m. Inside the container is liquid water in
3 answers
asked by
Anonymous
1,591 views
What is the entropy change for the vaporization of 2.6 mol H2O(§¤) at 100◦C and 1 atm? dH= 40700 J/mol
Answer in units of J/K
4 answers
asked by
Samantha
3,114 views
Some reactions that are predicted by their sign deltaG to be spontaneous at room temperature do not proceed at a measurable rate
6 answers
asked by
kali
3,434 views
1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his
5 answers
asked by
Isis
4,847 views
Find the root mean square velocity of molecules of gaseous phosphoric acid H3PO4 at 158°C. (Molar mass: O= 16 g/mol, H 1 g/mol,
2 answers
asked by
ezile
81 views
Which of the following statements is true regarding two points within a system?
A. They will have different types of particles.
4 answers
asked by
Morgan
2,200 views
Derive the expression for the temperature reached by a solid at a given time 10 't' in case of transient heat conduction
3 answers
asked by
Ruhi
125 views
The specific heat of copper is 0.385 J/g °C. How much thermal energy is required to increase the temperature of a 20g sample of
6 answers
asked by
Alexis Rangel Ramirez
3,012 views
Hello,
The pressure P and volume V of an expanding gas are related by the formula PVb=C, where b and C are constants (this holds
4 answers
asked by
Natalie
5,925 views
On a new temperature scale the steam point is 348 °X, and the ice point is 112 °X. What is the temperature on this scale that
1 answer
asked by
Janaiby
854 views
the molar heat of fusion for water is 6.01 kJ/mol. the heat capacity for water is 75 J/mol deg. Which expresssion gives the
4 answers
asked by
Sarah
1,500 views
If You transfer a sample of a gas at 17 °C from a volume of 5.67 L and 1.10 atm to a container at 37 °C that has a pressure of
4 answers
asked by
Lisa
3,490 views
A mass of a gas has a volume of 60cm3 at a temperature of 20°C and a pressure of 785mm mercury. Calculate the volume of a gas
3 answers
asked by
nambitha
2,394 views
A sample of gas at 3.00 x 103 atm inside a steel tank is cooled from -200 °C to 27 °C. What is the final pressure in mmHg of
4 answers
asked by
ezile
149 views
Is the following reaction endothermic or exothermic?
baking a cake endothermic exothermic
1 answer
asked by
CantSay
81 views
The Sun's internal heat is brought to the surface of the Sun by the process of:
fission convection fusion radiation
1 answer
asked by
John B
73 views
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