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Thermodynamics
Page 8
Questions (11,562)
when measuring latent heat, why should your final temperture be the minimum temperature reached by the calorimeter?
3 answers
asked by
asasasas
786 views
Compound B is burned in a bomb calorimeter that contains 1.50 liters of water. When I burned 50.0 grams of compound B in the
4 answers
asked by
Rose
1,359 views
The sun radiates like a perfect blackbody with an emissivity of exactly 1.
(a) Calculate the surface temperature(K) of the sun,
3 answers
asked by
Alice
4,314 views
1) If the kelvin temperature of a gas sample in a steel tank increases to three times its original value , what will happen to
4 answers
asked by
Jason
1,066 views
Describe an experiment to show that the saturation vapour pressure of water at its boiling is equal to the air pressure on its
4 answers
asked by
Stella
310 views
If 200 cal heat energy is required 40 grams of liquid to its gaseous state then the latent heat of vapourization of it is
3 answers
asked by
Haritha
218 views
Convert the following to Kelvin temperature
a)148°c (b) _132°c ( c) 27°c
4 answers
asked by
Blessing
754 views
If 18oo cal:of heat is added to a system while system does work equivalent to 2800 cal:by expanding against its surroundings.
4 answers
asked by
ABC
866 views
What mass of liquid water at room temperature
(25◦C) can be raised to its boiling point with the addition of 43.0 kJ of energy?
3 answers
asked by
Nicole
1,350 views
The heat of combustion of benzene, C6H6, is -41.74 kJ/g. Combustion of 3.65 of benzene causes a temperature rise of 4.41 C^o in
4 answers
asked by
Bobby
3,771 views
Calculate the heat in kilojoules needed to vaporize 8.00kg of water at 100∘C.
3 answers
asked by
Jacqueline
1,743 views
the standard free energy change for a chemical reaction is +13.3 kj/ mol. What is the equilibrium constant for the reaction at
3 answers
asked by
nurcan
1,699 views
The air 10 cm diameter cylinder, as shown below, is heated until the spring is compressed 50mm. Find the work done by the air on
3 answers
asked by
chris
841 views
a piece of metal of mass 50g heated to 100°c is dropped into 200g of water of 14°c in copper calorimeter weighing 80g and
3 answers
asked by
blessyn
655 views
Newton’s law of cooling states that the rate of cooling of an object is proportional to the temperature difference between the
3 answers
asked by
Anonymous
3,510 views
20.00 cm of space is available. How long a piece of brass at 20°C can be put there and still fit at 200°C? Brass has a linear
3 answers
asked by
shirly
1,452 views
A 1.0-m thin rod of aluminum is laid end-to-end with a 1.0-m thin rod of steel. The rods
are initially at 25 oC. What is the
3 answers
asked by
catherine
734 views
ou are given the following data.
S(s) + 3/2 O2(g) → SO3(g) ΔH = -395.2 kJ 2 SO2(g) + O2(g) → 2 SO3(g) ΔH = -198.2 kJ
3 answers
asked by
Jen
1,894 views
Which of the following best describes the heat engine?
A. A heat engine works through the conversion of energy in the form of
4 answers
asked by
Anonymous
1,878 views
A 2.839-g sample of C2H4O was burned in a bomb calorimeter whose total heat capacity is 16.77 kJ/°C. The temperature of the
4 answers
asked by
Nisah
2,511 views
James Joule once attempted to measure the increase in temperature of the water in a waterfall resulting from its decrease in
3 answers
asked by
Alex
1,447 views
Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) delta H1?
MgO(s) + 2HCl(aq) ->MgCl2(aq) + H2O(l) delta H2? To make these equations add up
5 answers
asked by
Hannah
5,743 views
A steel wire, 150 m long at 10°C, has a coefficient of linear expansion of 11 ´ 10-6/C°. Give its change in length as the
4 answers
asked by
Jesse
3,208 views
If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?
3 answers
asked by
Vanessa
1,506 views
How much energy is released to the environment by 50.0 grams of condensing water vapor? Hv = 40.7 kJ/mol
4 answers
asked by
Diego
420 views
The temperature of piece of copper of mass 250g is raised to 100% and is then transferred to well lagged aluminum can mass 10g
4 answers
asked by
HUDSON
1,182 views
A piece of metal weighing 5.10g at a temperature of 48.6 degree Celsius was placed in a calorimeter in 20.00 mL of water at 22.1
3 answers
asked by
Mai
2,809 views
In 1986 a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately a rectangle 160 km long,
3 answers
asked by
Eric
2,263 views
Each of the following processes is spontaneous as described. Which one will have ∆H approximately equal to zero?
1.
3 answers
asked by
Mary
707 views
Three moles of an ideal monatomic gas are at a temperature of 345 K. Then, 2531 J of heat are added to the gas, and 1101 J of
3 answers
asked by
Mary
2,763 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
..
793 views
For a certain reaction, Kp = 3.54 at 325 C.
Find delta G 598 K in kJ/mol.
3 answers
asked by
Anonymous
722 views
Given the enthalpies of formation for the following substances, determine ƒ´Hrxn for
Cl2(g) + C2H2Cl2(g) „_ C2H2Cl4(g)
3 answers
asked by
Stephen
669 views
A Carnot engine is operated between two heat reservoirs at temperatures 520 K and 300 K. (a) If the engine receives 6.45 kJ of
4 answers
asked by
Jen
2,366 views
the temperature of the sun at its center is about 2.7x10^7 degrees fahrenheit what is this temperature written in decimal
25 answers
asked anonymously
354 views
When the temperature of 4 dm'3 of an ideal gas is increased from 200k to halved, calculate the final volume of the gas.
3 answers
asked by
Anonymous
538 views
If the linear expansivity of a copper rod is 1.7*10^_5_k^_1, calculate the expansion 10m of copper 50 of when heated from
3 answers
asked by
Sanda
385 views
1. Which of the following explains why the bomb calorimeter exemplifies the First Law of Thermodynamics.
a. It requires the slow
3 answers
asked by
Tej
1,320 views
The temperature of a cup of coffee varies according to Newton's Law of Cooling: dT/dt = -k(T - A), where T is the temperature of
5 answers
asked by
Erika
5,335 views
one mole of an ideal gas expanded isothermally and reversibly at temperature of 300k from 10 to 1 atmospheric (atm). Calculate
3 answers
asked by
SIMARKUS
569 views
How much heat is required to raise the temperature of 25g of aluminum from 25.0 C to 100 C?
Convert this value to joules?
3 answers
asked by
Santiago
1,525 views
A 135g sample of ice is in a freezer at -21 degrees celsius. It is removed from the freezer and allowed to melt and the
3 answers
asked by
Tegan
898 views
2. A 75.0 g sample of a metal is placed in boiling water until its temperature is 100.00C. A calorimeter contains 100.00 g of
3 answers
asked by
Lilian
2,333 views
A cylinder contains one liter of air at room temperature (300 K) and atmospheric pressure (10^5 N/m^2). At one end of the
2 answers
asked by
Jane
1,303 views
Work it out. How many joules of heat is given out when pieces of iron of mass 50g and specific heat capacity =460kgk cools from
6 answers
asked by
Peter
742 views
Octane has a vapor pressure of 40 torr at 45.1 degrees Celsius and 400 torr at 104 degrees Celsius. What is its heat of
3 answers
asked by
Dayton
1,016 views
Some Carnot engine has an efficiency 0.700. The hot reservoir temperature is 900K. This means that the temperature of the cold
4 answers
asked by
Daniel
953 views
Which statement correctly describes the relationship between thermal energy and particle movement?
As thermal energy increases,
3 answers
asked by
trippie
148 views
The heat of vaporization of liquid water at 373 K is 40.7 kJ/mol. The value of the enthalpy change when 2.00 g of steam
3 answers
asked by
Anonymous
2,490 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
2,213 views
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