Questions LLC
Login
or
Sign Up
Ask a New Question
Thermochemistry
Page 8
Questions (383)
If the heat of combustion for a specific compound is -1170.0 kJ/mol and its molar mass is 42.75 g/mol, how many grams of this
2 answers
asked by
Anonymous
493 views
Data given are related to the Born-Haber cycle for HCl
Calculate the amount of energy lost when the ionic species return to their
1 answer
asked by
Francesca
489 views
How much heat is liberated when 0.113 mole of sodium
reacts with excess water according to the following equation? DH = -368
3 answers
asked by
naik
467 views
How much work is done at 1.2 atm and 316 K when 1 mole of propane undergoes combustion?
C3H8 (l) + 5O2 (g) → 3CO2 (g) + 4H2O
1 answer
asked by
madison
475 views
When 0.572 g of compound X is burned completely in a bomb calorimeter containing 3000
g of water, a temperature rise of 0.461 ◦
1 answer
asked by
Austin
462 views
From the following Information, calculate the standard change of enthalpy for the combustion of coal. SHOW WORK AND BALANCED
1 answer
asked by
Chloe
464 views
50.0 mL (50.0g) of water was transferred to a polystyrene calorimeter. The initial temperature was recorded as 21.6°C. Then
5 answers
asked by
Anonymous
449 views
Using the following thermochemical data, what is the change in enthalpy for the following reaction?
Ca(OH)¿(aq) + HCl(aq) d
1 answer
asked by
ciara
462 views
Define a system and state the significant the enthalpy change for the system. Explain your reasoning?
A) natural gas burning in a
1 answer
asked by
Saarah
455 views
When 0.954 g of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 391C is observed.
Assume the solution's
3 answers
asked by
Anonymous
468 views
How much heat is released when a mixture containing 12.6 g CS2 and 12.6 g Cl2 reacts by the following equation?
CS2(g) + 3 Cl2(g)
1 answer
asked by
caroline
454 views
Calculate and record the average molar heat of reaction from the three results.
1 answer
asked by
Anonymous
424 views
divide eq 2 by 2:
2H(g)........> H2(g) delta H= -104.2Kcal H(g) ........> 1/2 H2(g) delta H= -72.1Kcal Now reverse the reaction:
1 answer
asked by
Anonymous
431 views
A 4.50 g sample of LiCl at 250 C dissolves in 25.0 ml of water also at 25.0 C.? The final equilibrium temp of the resulting
1 answer
asked by
Jeff
441 views
What is ΔHof of Al2S3(s)?
2Al2S3(s) + 9O2(g) → 2Al2O3(s) + 6SO2(g) ΔHo = -3684.2 kJ ΔHof Al2O3(s) = -1675.7 kJ/mol ΔHof
1 answer
asked anonymously
21 views
Sulfur trioxide reacts with water to form sulfuric acid, a major
contributor to acid rain. One origin of SO3 is the combustion of
1 answer
asked anonymously
27 views
What is the molar enthalpy for NO2?
1 answer
asked anonymously
18 views
Calculate AH for the reaction CH4 (g) + NH3 (g) → HCN (g) + 3 H2 (g), from the reactions.
N2 (g) + 3 H2 (g) → 2 NH3 (g) ΔΗ
1 answer
asked anonymously
31 views
Which fact must be true if a relationship is endothermic?(1 point) Responses More energy is needed to form the bonds on the
1 answer
asked anonymously
31 views
Which statement is true?
Question 6 options: In an endothermic reaction, the energy of the products is less than the energy of
1 answer
asked anonymously
25 views
How does a phase change affect a thermochemical equation?
Question 9 options: It alters the moles of reactants. It can affect the
1 answer
asked anonymously
16 views
Is a burning fire endothermic or exothermic? How do you know?(1 point)%0D%0AResponses%0D%0A%0D%0AA burning fire is exothermic
1 answer
asked anonymously
24 views
Calculate the heat of combustion of a compound, if 0.06mole of heat on burning raise the temperature of 400gm of water by 10k
1 answer
asked by
Zubydon
28 views
Calculate the heat of combustion of a compound z , if 0.06 of heat on burning raise the temperature of 400gm of water by 10k
1 answer
asked by
Zubydon
24 views
Parts (b) and (c) pertain to the combustion of propane according to the process outlined below.
C3H8(g) + 5O2(g) —> 3 CO2(g) +
1 answer
asked anonymously
28 views
Hydrogen cyanide is a highly poisonous, volatile liquid. One way in which it can be
prepared is by the reaction: CH4 (g) + NH3
1 answer
asked anonymously
16 views
Calculate ∆H° for the following combustion reaction from the data given in the table below.
SiH4 (g) + 3 O2 (g) → SiO2 (s) +
1 answer
asked anonymously
12 views
Calorimetry and Specific Heat lab report
1 answer
asked by
babs
8 views
The given enthalpy of formation of magnesium oxide is -600KJ/mol, determine the enthalpy change when 3.8 grams of magnesium
1 answer
asked anonymously
7 views
What’s the complete thermochemical equation for this reaction : I have 1.95g Na2CO3, 125.0mL of 2.50 mol/L of HCl.Initial
1 answer
asked anonymously
7 views
What’s the complete thermochemical equation for this reaction : I have 1.95g Na2CO3, 125.0mL of 2.50 mol/L of HCl.Initial
1 answer
asked anonymously
8 views
Consider the reaction.
2 upper C (s, graphite) plus upper H subscript 2 right arrow upper C subscript 2 upper H subscript 2 (g).
1 answer
asked anonymously
7 views
Thermochemical Equations
Project: Modeling Energy Changes In this assignment, you will write and balance a chemical equation.
1 answer
asked anonymously
6 views
Pages
1
2
3
4
5
6
7
8
Parent Categories (9)
Acids and Bases
Chemical Reactions
Chemistry
Chemistry Knowledge
Physical Chemistry
Physics
Reactions and Energy
Stoichiometry
Thermodynamics