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Enthalpy of formation
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Questions (84)
Use the following data (in kJ/mol) to estimate the standard enthalpy of formation (in kJ/mol) for hypothetical compound CsF2 in
1 answer
asked by
Rossina
876 views
please help me? :)
topic: standard enthalpies of formation "Calculate ΔHf° of octane, C8H18(l), given the entalpy of combustion
3 answers
asked by
marie
2,207 views
Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) gas and calcium hydroxide (Ca(OH)2). If the ΔH for:
CaC2(s) +
3 answers
asked by
danny
2,151 views
Calculate ΔH∘f (in kilojoules per mole) for benzene, C6H6, from the following data:
2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l) ΔH∘
3 answers
asked by
Tyler
1,364 views
Use enthalpies of formation from the textbook to calculate the standard enthalpy of the reaction for the following methane-
2 answers
asked by
Kay
1,257 views
The standard enthalpy of formation at 298k for ccl4,h2o,co2,hcl are -22.5,-57.8,-94.1 and-22.1 kcal/mol.calculate ▲rH FOR
3 answers
asked by
rakesh dhakal
1,186 views
If we have :
H2(g) + 1/2 O2(g) -> H2O(l) dHf= -285.5 Kj N2O5(g) + H2O(l) -> 2HNO3 dHf = -76.6 Kj 1/2 N2 + 3/2 O2 + 1/2 H2 -> HNO3
3 answers
asked by
MAD
1,074 views
2)Which of the following equations represents a reaction for which the delta H can be called a standard enthalpy of formation,
3 answers
asked by
Hannah
888 views
Calculate ∆Hºf /mol for propane, C3H8(g), given the following reaction: (10 points)
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(ℓ
2 answers
asked by
Ruth
917 views
What is the enthalpy of formation of 2C10H22+31O2=20CO2+22H2O
2 answers
asked by
Anonymous
810 views
what is the standard enthalpy formation of liquid diethylamine (CH3CH2)2 NH?
N2O5(g) + 8CH4(g) ==> 2(CH3CH2)2NH(l) +5H2O(l),
6 answers
asked by
Ellie
2,040 views
the standard enthalpy of formation of ammonia is -46 kj/mol. if the enthalpy of formation of hydrogen molecule is -436 kj/mol
2 answers
asked by
bonnhi
808 views
for a particular isomer C8H18, the following reaction produces 5113.3 kj of heat per mole of C8H18 consumed under standard
3 answers
asked by
Annie
799 views
Determine the enthalpy of formation for chlorine trifluoride, C1F3(g).
2C1F3(g) + 2NH3(g) --> N2(g) + 6HF(g) + Cl2(g) +1.200*10^3
2 answers
asked by
anonymous
718 views
The balanced equation for the decomposition of sodium bicarbonate is 2 NaHCO3 (s) --> Na2CO3 (s) + H2O (g) + CO2 (g)delta H
2 answers
asked by
Laura
694 views
For a particular isomer of C8H18, the following reaction produces 5099.5 kJ of heat per mole of C8H18(g) consumed, under
2 answers
asked by
Z
699 views
Explain the difference between the enthalpies of formation of gaseous water and liquid water which are respectively, -242 and
2 answers
asked by
DylS
667 views
Calculate the enthalpy of formation if 78.5 g of carbon dioxide in the following reaction:
C(s) + H2O(g) --> CO2(g) Use the
2 answers
asked by
anon
642 views
The enthalpy of formation for a substance corresponds to the enthalpy change for a reaction. Write the specific chemical
2 answers
asked by
AJ
655 views
Calculate the enthalpy of formation of carbon dioxide in the following reaction:
C(s) + O2(g) -> CO2(g) Use the following
2 answers
asked by
anon
642 views
S8 (rhombic) + 12 O2 (g)-----> 8 SO3 (g) + 752.0 kcal
In the reaction above equated, performed at 25 °c and 1 atm, the formation
3 answers
asked by
damon
620 views
calculate the enthalpy of formation, per mole, of sucrose, C12H2211O(s). C12H22O11(s) + 12O2(g) --> 12CO2(g) +11H2O(l)
deltaH=-5.
2 answers
asked by
Stacy
594 views
I need to do this question but um unable to draw the enthalpy cycle please help me.
The standard enthalpy of combustion of
2 answers
asked by
isu
580 views
Why do we put a minus sing in front of the bond enthalpies of the bonds that are being formed?
And why are the enthalpies of
2 answers
asked by
Anna
564 views
I'm trying to figure out what went wrong during my freshman chem lab.
We were figuring out the enthalpy of formation of MgO(s).
3 answers
asked by
Louie
544 views
For a particular isomer of C8H18, the combustion reaction produces 5113.3 kJ of heat per mole of C8H18(g) consumed, under
2 answers
asked by
Anonymous
537 views
A 1.2 g sample of C-5 H-10 O is burned completely in excess oxygen to yield CO2(g) and H2O(l) at 25 C, releasing 43.52 kJ of
2 answers
asked by
LaurenB
489 views
Liquid methanol (CH
3 OH) is used as an alternative fuel in truck engines. When a 0.150 g sample of methanol was burned in a
1 answer
asked by
jaspreet
498 views
The bond enthalpy of N2(g) is 418.0 kJ/mol. Calculate ÄH°f for N(g).?
1 answer
asked by
Trinh
457 views
If 4.02g of hydrogen and 25.0g of oxygen (at standard conditions) are reacted to form water vapor, what quantity of heat is
4 answers
asked by
Kay
447 views
If the standard state of sufur is S8 (s), which of the following equations represents the standard enthalpy of formation of
1 answer
asked by
Ninaya
442 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
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
22 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
8 views
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Parent Categories (10)
Bond Enthalpy
Chemical Reactions
Chemistry
Equations
Organic Chemistry
Reaction
Stoichiometry
Thermochemistry
Thermodynamics
Thermodynamics or Chemical Reactions