Thermochemical Equations

Welcome to the Thermochemical Equations category on Questions LLC! Here, you will find a comprehensive collection of questions and answers covering the fascinating world of Thermochemical Equations. Thermochemical Equations play a fundamental role in understanding the energetics of chemical reactions and are crucial in various scientific fields, including chemistry, physics, and materials science. Whether you are a student looking to deepen your knowledge or a professional seeking quick insights, our experts have carefully curated a wide range of questions to provide you with the information you need. Explore this category to unravel the mysteries behind Thermochemical Equations and enhance your understanding of the intricate relationship between energy and chemical transformations. Get ready to dive into the captivating world of Thermochemical Equations and sharpen your knowledge in this captivating field!

Questions (45)

Consider the following two thermochemical equationsN2+2.5O2-> N2O5(s) Delta H=xkJ N2+2.5O2-> N2O5(g) Delta H=ykJ The enthalpy
1. 7 answers
2. asked by Bobz
3. 2,218 views
Write the three thermochemical equations needed to calculate the delta H for the below reaction.?2Mg(s) + O2(g) --------> 2
1. 1 answer
2. asked by Barbara
3. 1,198 views
Consider the following balanced thermochemical equation for a reaction sometimes used forH2S production: 1/8 S8 (s) + H2 (g)
1. 4 answers
2. asked by patrick
3. 5,520 views
Given the thermochemical equation SO2(g) + ½ O2(g) ---> SO3 (g) DH = -99.1 kJcalculate the enthalpy change (DH) when 89.6 g of
1. 6 answers
2. asked by noshi
3. 2,364 views
Consider the following thermochemical equations.Reaction ΔrH° / kJ mol−1 HBr(g) ⟶ H(g) + Br(g) 365.7 H2(g) ⟶ 2 H(g)
1. 4 answers
2. asked by Kin
3. 1,264 views
Butane, C4H10, is widely used as a fuel for disposable lighters. When one mole of butane is burned in oxygen, carbon dioxide and
1. 3 answers
2. asked by Chris
3. 2,553 views
Given the thermochemical equation:2 Al(s) + 3/2 O2(g) > Al2O3(s) ΔH = -95.7 kJ find the heat of reaction, ΔH, for the
1. 6 answers
2. asked by tal
3. 2,324 views
1)Which thermochemical equation and data does not agree with the other two written?a) 2NO (g)+ O2 (g) ->2 NO2 (g) deltaH=-169.8
1. 4 answers
2. asked by Rick
3. 1,060 views
For the following equation, write a thermochemical equation that includes an energy term within the equation: The formation of 1
1. 4 answers
2. asked by Han
3. 686 views
The reaction of 1 Mol of iron metal with 3 Mol aqueous HCI produces 1.5 mol H2 gas, 1 mol aqueous FeCI3, and 87.9 kj of heat.
1. 5 answers
2. asked by Sarah
3. 684 views
Rewrite the following using a thermochemical equation with a deltaH value: a) The standard molar enthalpy of combustion for
1. 6 answers
2. asked by Han
3. 1,389 views
Use the thermochemical equations shown below to determinethe enthalpy (kJ) for the reaction: H2SO3(l)=>H2S(g) + 3/2O2(g)
1. 5 answers
2. asked by anonymous
3. 2,206 views
Consider the following two thermochemical equationsN2+2.5O2-> N2O5(s) Delta H=xkJ N2+2.5O2-> N2O5(g) Delta H=ykJ The enthalpy
1. 4 answers
2. asked by Bob
3. 917 views
If 17.7 kJ are released when 1.00 g of O2 reacts with an excess of NO, complete the thermochemical equation below.4 NO(g) +
1. 3 answers
2. asked by Chloe Luster
3. 669 views
The thermochemical equation for the combustion of hexane is shown below.2 C6H14 (g) + 19 O2 (g) → 12 CO2 (g) + 14 H2O (g)
1. 3 answers
2. asked by Hunter
3. 1,276 views
I don't know why it was marked wrong. This is what it said: Where is the 5.64 coming from? (thank you)HINT To balance the
1. 2 answers
2. asked by patrick
3. 513 views
Help please!i'm not sure if i'm right. Honestly i'm not that confident about most of my work.In which of the following
1. 4 answers
2. asked by Anonymous
3. 1,515 views
1)Which thermochemical equation and data does not agree with the other two written?a) 2NO (g)+ O2 (g) ->2 NO2 (g) deltaH=-169.8
1. 4 answers
2. asked by Hannah
3. 1,126 views
the below 2questions i could not answer while revising for this chapter pls help me out a little.58. When a vehicle is parked in
1. 1 answer
2. asked by Babelii
3. 641 views
Use the thermochemical equations shown below to determinethe enthalpy (kJ) for the reaction: H2SO3(l)=>H2S(g) + 3/2O2(g)
1. 1 answer
2. asked by sara
3. 597 views
Write three thermochemical equation needed to calculate delta H for the following reaction:2Mg(s) + O2(g) = 2MgO Include delta h
1. 1 answer
2. asked by Shana
3. 1,041 views
Hi can someone help me with this other problem from my homework,The thermochemical equation is C6H12O6(s)+ 6O2(g)--> 6CO2(g)+
1. 4 answers
2. asked by Shylo
3. 796 views
Is the following a properly written thermochemical equation?2C8H18 + 25O2 → 16CO2 + 18H2O, ΔH = –5,471 kJ/mol No, the
1. 3 answers
2. asked by AM
3. 1,942 views
Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3),
1. 4 answers
2. asked by student
3. 1,703 views
Which of the following statements is incorrect concerning the thermochemical equation below?2SO3(g)  2SO2(g) + O2(g); H°
1. 3 answers
2. asked by Jessica
3. 1,441 views
If 15.0 kJ are released when 1.40 g of F2 reacts with an excess of SiH4, complete the thermochemical equation below.SiH4(g) + 2
1. 4 answers
2. asked by Rach
3. 1,444 views
given the thermochemical equations,B2O3 + 3H2O -> 3O2 + B2H6 delta h = -2035 kj H2O -> H2O delta h = 44 kj H2 + 1/2O2 -> H2O
1. 2 answers
2. asked by bekah
3. 1,253 views
Which of the following statements is incorrect concerning the thermochemical equation below?2SO3(g)  2SO2(g) + O2(g); H°
1. 1 answer
2. asked by Kayla
3. 1,127 views
Copper metal can be obtained by heating copper oxide in the presence of carbon monoxide, CO, according to the reaction:CuO(s) +
1. 3 answers
2. asked by Jordin
3. 1,115 views
If 16.9 kJ are released when 1.50 g of O2 reacts with an excess of NO, complete the thermochemical equation below.4 NO(g) + 3
1. 3 answers
2. asked by Tiffany
3. 1,094 views
Can someone help me with this question?what two conditions must be met by a thermochemical equation so that its standard
1. 2 answers
2. asked by Leslie
3. 904 views
The following thermochemical equation is for the reaction of iron(s) with chlorine(g) to form iron(III) chloride.2Fe(s) +
1. 3 answers
2. asked by Hannah
3. 897 views
Sucrose (C12H22O11, table sugar) is oxidized in the body by O2 via a complex set of reactions that ultimately produces CO2 (g)
1. 2 answers
2. asked by patrick
3. 897 views
Consider the following thermochemical equation:CH4(g) + I2(g) --> CH3I(g) + HI(g) DH = +23 kJ What energy change occurs when 1.6
1. 2 answers
2. asked by Nisah
3. 794 views
If 15.0 kJ are released when 1.40 g of F2 reacts with an excess of SiH4, complete the thermochemical equation below.SiH4(g) + 2
1. 2 answers
2. asked by Megan
3. 787 views
these are my three thermochemical equations2Cu(s)+S(s) give Cu_2S(s) delta H -79.5 KJ S(s)+O_2 give SO_2(g) -297 KJ
1. 4 answers
2. asked by mohd
3. 782 views
Hi, I am doing a practice test for my chemistry final and I do not understand one of the answer they gave for this
1. 3 answers
2. asked by Matilda
3. 597 views
Given the following thermochemical equations,NO(g) + (1/2) Cl2(g) --> NOCl(g) -37.78 kJ (per mol NOCl) NO(g) + (1/2) O2(g) -->
1. 2 answers
2. asked by abby
3. 544 views
By using the bond enthalpies and bond energies in thermochemical equations to calculate the reaction enthalpy of; H + Br=2HBr
1. 1 answer
2. asked by Gift
3. 503 views
Use the thermochemical equations:1/2 H2(g)+1/2 I2(g) ...............> HI(g) delta H = -1.1 k cal 1/2 H2(g).......> H2 (g) delta
1. 2 answers
2. asked by miss
3. 505 views
Use the bond enthalpies and bond energies from the data book in themochemical equations to calculate the reaction enthalpy
1. 1 answer
2. asked by Gift
3. 492 views
How do you calculate deltaHf using the # of moles from a balanced equation?How do you connect the Law of Conservation of Energy
1. 4 answers
2. asked by K
3. 461 views
Which equation is a correctly written thermochemical equation?Question 8 options: NH4Cl --> NH4+ + Cl- 2C8H18 + 25O2 --> 16CO2 +
1. 1 answer
2. asked anonymously
3. 14 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. 1 answer
2. asked anonymously
3. 3 views
Thermochemical EquationsProject: Modeling Energy Changes In this assignment, you will write and balance a chemical equation.
1. 1 answer
2. asked anonymously
3. 2 views