Questions LLC
Login
or
Sign Up
Ask a New Question
Thermodynamics
Page 7
Questions (11,562)
Calculate the final centigrade temperature required to change 20 litres of gas at 120°C and 1 atmosphere to 25 litres at 2
9 answers
asked by
Busola
3,059 views
The temperature of a 12.58g sample of calcium carbonate increases from 23.6degrees celcius to 38.2 degrees celcius. If the heat
5 answers
asked by
Tommy
3,870 views
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
4,646 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
2,378 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
1,558 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
1,604 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
4,592 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 ✧
295 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
3,594 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
3,222 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
661 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
1,293 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
5,752 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
3,113 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
928 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
2,489 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
1,343 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.
1,694 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
816 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
3,943 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
1,969 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
2,130 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
1,235 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
4,418 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
746 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
2,728 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
2,754 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
4,268 views
A cube of ice is take from the freezer at -8.5C and placed in a 95g calorimeter aluminum cup containing 310g of water at 20degC.
4 answers
asked by
Mark
2,527 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
9,982 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
3,094 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
1,498 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
1,656 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
4,352 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
1,856 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
1,736 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
3,422 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
1,601 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
2,652 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
1,179 views
A 580mL sample of water was cooled from 60°C to 10°C. how much heat was lost?
4 answers
asked by
Anonymous
613 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
2,066 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
2,887 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
396 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
5,446 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
2,792 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
1,765 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
443 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
3,910 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
2,974 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (70)
Atmospheric Science
Biology
Chemical Equilibrium
Chemical Reactions
Chemistry
Chemistry/Physics
Cu-Al Phase Diagram
Energy
Energy and Heat
Energy and Reactions
Engineering
Engineering or Mechanics
Equilibrium
Exothermic processes
Gas Laws
Gaseous Reactions
Gases
General Chemistry
Heat and Energy
Heat and Temperature
Heat Transfer
Materials Science
Mathematics
Mechanics
Meteorology
Organic Chemistry
Physical Chemistry
Physical Properties
Physical properties and changes
Physical Science
Physical Science/Chemistry
Physical Sciences
Physics
Physics and Chemistry
Physics and Engineering
Physics Education
Physics or Atmospheric Sciences
Physics or Chemistry
Physics or Physical Science
Physics or Science
Physics/ Energy
Physics/Chemistry
Physics/Critical Thinking
Reaction
Reaction kinetics
Reactions
Reactivity of Elements
Redox Reactions
Renewable Energy
Science
Science and Chemistry
Science and Energy
Science and Engineering
Science and Physics
Science and Technology
Science and Temperature
Science Education
Science Experiments
Science or Physics
Science/Chemistry
Science/Energy and Heat
Science/Engineering
Science/Mathematics
Science/Physics
Science/Technology
Scientific Concepts
States of Matter
Stoichiometry
Temperature
Temperature and Heat