Ch.6 - Thermochemistry See all chapters

Sections | |||
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Internal Energy | 22 mins | 0 completed | Learn |

Calorimetry | 39 mins | 0 completed | Learn |

Hess's Law | 17 mins | 0 completed | Learn |

Enthalpy of Formation | 13 mins | 0 completed | Learn Summary |

End of Chapter 6 Problems | 52 mins | 0 completed | Learn |

Additional Sections |
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Units of Energy |

Endothermic & Exothermic Reactions |

Given the following data:

3CO_{2}(g) + 4H_{2}O(l) ⇌ C_{3}H_{8}(g) + 5O_{2}(g)

∆H = 1, 110 kJ · mol^{−1}

H_{2}O(l) ⇌ H_{2}(g) + 1/2O_{2}(g)

∆H = 142.5 kJ · mol^{−1}

3C_{graphite} + 4H_{2}(g) ⇌ C_{3}H_{8}(g)

∆H = −52 kJ · mol^{−1}

calculate ∆H for the reaction

Cgraphite + O_{2}(g) ⇌ CO_{2}(g)

1. 1202 kJ · mol^{−1}

2. −592 kJ · mol^{−1}

3. 543 kJ · mol^{−1}

4. −197 kJ · mol^{−1}

5. −543 kJ · mol^{−1}

Calculate the enthalpy of the following reaction:

Using Hess’s Law, determine the ΔH of the followin...

Use the standard reaction enthalpies given below t...

Given the chemical reactions:
2 NO2(g) → N2(g) + ...

The values for the enthalpy of reaction are given ...

Given these values of ΔH° :
CS2 (l) + 3O2(g) → CO...

Given the following reactions
Fe2O3 (s) + 3CO (s)...

Given the following reactions
N2 (g) + 2O2 (g) → ...

Calculate ΔH° (in kJ) for the reaction.
2S (s) + ...

S(s) + O2(g) → SO2 (g) ∆H = ‐296.8 kJ
2SO2 +...

The United States gets 95% of its hydrogen gas by ...

Researchers at Purdue University have exploited th...

Given the following data:
3CO2(g) + 4H2O(l) ⇌ C3H...

Use the following equations
C (s) + O2 (g) → CO2 ...

Determine the answer for the question below.

The heat of solution is LiCl is –37.1 kJ/mol, and ...

Consider the following set of reactions:CO + 1/2O2...

Consider these reactions, where M represents a gen...

Calculate the enthalpy of the reaction
4B(s) + 3O...

Using the enthalpy of reaction for the 2 reactions...

Consider these reactions, where M represents a gen...

Use the standard reaction enthalpies given below t...

Calculate ΔHrxn for the reaction CaO(s) + CO2(g) →...

Calculate ΔHrxn for the following reaction: Expres...

Consider these reactions, where M represents a gen...

Using Hess' Law, calculate the enthalpy of formati...

Which of the following is a statement of Hess's la...

H2(g) + F2(g) → 2HF (g) ΔH rxn = -546.6 ...

Calculate the enthalpy of the reaction2NO(g) + O2(...

Calculate the enthalpy of the reaction4B(s) + 3O2(...

Calculate ΔH°rxn for the reaction
2 Ni(s) + 2 S(s...

Coal gasification can be represented by the equati...

At 1 atm pressure, the heat of sublimation of gall...

Calculate the enthalpy change for the reactionP4O6...

Now consider the following set of reactions:2NO2 →...

From the enthalpies of reaction2 H2(g) + O2(g) → 2...

From the enthalpies of reactionH2 (g) + F2 (g) → 2...

Given the dataN2 (g) + O2 (g) → 2 NO (g) ...

Calculate ΔHrxn for the following reaction:CH4(g) ...

Consider the following generic reaction:
A+2B→C+3...

Calculate the ΔHrnx for the following reaction CH4...

Consider the following set of reactions:
N2 + 2O2...

Given these reactions:
X(s) +1/2 O2(g) → XO(s)
H...

Now consider the following set of reactions:
Reac...

Calculate ΔHrxn for the following reaction
2 NOCl...

Calculate the ΔHrnx for the following reaction C(s...Consider these reactions, where M represents a gen...Calculate the enthalpy change of2A + E -->3Cgiv...Use the standard reaction enthalpies given below t...Given the following reactions:(1) 2NO --> N2 + ...Calculate the enthalpy of formation of SO2 (g) fro...A chemist measures the enthalpy change ΔH during t...Use the following data to determine the Delta H fo...Consider the equations below. (1) Ca (s) + CO2 (g)...Given these reactions, X (s) + 1/2O2 (g) → XO (s) ...How can the first two reactions be combined to obt...Calculate Δ Hrxn for the following reaction:CaO(s)...Nitroglycerine is a powerful explosive that forms ...Calculate the enthalpy of the reaction 4B (s) + 3O...Given the standard enthalpy changes for the follow...A chemist measures the enthalpy change ΔH during t...Research is being carried out on cellulose as a so...Find ΔH° for BaCO3 (s) → BaO (s) + CO2 (g) given t...Enter your answer in the provided box.From these d...From the enthalpies of reaction 2C(s) + O2(g) → 2C...Calculate the ΔH° for the following reaction using...Using data from the following reactions and applyi...Given the following reactions: 2S (s) + 3O2 (g) → ...Given that H2 (g) + F2 (g) → 2HF (g) ΔH°rxn = ...Calculate the enthalpy of the reaction 2NO (g) + O...The industrial process for making sulfuric acid ha...Calculate ΔH°rxn for the reaction 2Ni (s) + 2S (s)...The combustion reaction of butane is as follows. C...Given the following data: N2(g) + O2(g) → 2NO(g), ...Enter your answer in the provided box.You are give...Given the following data (1) 2ClF (g) + O2 (g) → C...Consider the following chemical reaction. NH3(g) +...Consider the following hypothetical reactions:A → ...The enthalpy of decomposition of NO2Cl is -114 kJ....A chemist measures the enthalpy change ΔH during t...

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