Questions tagged 'Enthalpy'
15 questions
Use the following data to calculate the enthalpy of hydration for calcium chloride and calcium iodide.?
Use the following data to calculate the enthalpy of hydration for calcium chloride (CaCl2) and calcium iodide (CaI2). The lattice energy for CaCl2 is -2247 kJ/mol, and the enthalpy of solution is -46...
Using bond enthalpies, estimate ΔH for the following gas-phase reactions: Estimate delta H for reactions a, b and c.?
"Using bond enthalpies, estimate the change in enthalpy (ΔH) for the following gas-phase reactions. Please calculate ΔH for reactions (a), (b), and (c), providing a detailed explanation of your calcul...
Consider this combination reaction: 2mg(s)+o2(g)→2mgo(s) δh=−1204 kj what is the enthalpy for the decomposition of 1 mole of
Consider the following combination reaction: 2 mg(s) + O2(g) → 2 MgO(s) with a ΔH of -1204 kJ. What is the enthalpy change for the decomposition of 1 mole of MgO(s) into Mg(s) and O2(g)?
Jan 04, 2025
What is the enthalpy for reaction 1 reversed? reaction 1 reversed: 2co2+3h2o→c2h5oh+3o2?
What is the enthalpy change for the reverse of Reaction 1? The reaction is as follows: 2 CO2 + 3 H2O → C2H5OH + 3 O2.
Dec 28, 2024
calculate the enthalpy change for the neutralization please!!!?
In a coffee cup calorimeter, 100.0 mL of 1.0 M NaOH is mixed with 100.0 mL of 1.0 M HCl. Both solutions were initially at 24.6 °C. After the reaction, the final temperature is measured at 31.3 °C. Ass...
The combustion of pentane, c5h12, occurs via the reaction c5h12(g)+8o2(g)→5co2(g)+6h2o(g) with heat of formation values given by
The combustion of pentane (C5H12) is represented by the following reaction: C5H12(g) + 8O2(g) → 5CO2(g) + 6H2O(g). To analyze this reaction further, we can consider the heat of formation values prov...
What is the enthalpy of the reaction?
What is the enthalpy change of the reaction? Please calculate it using the formula ΔH_rxn = ΣΔH_f (products) - ΣΔH_f (reactants). The values are as follows: -1,839.6 kJ for the products and -1,179.8 k...
Nov 22, 2024
A process which is unfavorable with respect to enthalpy, but favorable with respect to entropy?
What is a process that is unfavorable in terms of enthalpy but favorable in terms of entropy? Can such a process occur at high temperatures but not at low temperatures, or could it occur at low temper...
Consider an ionic compound, MX2, composed of generic metal M
Consider an ionic compound, denoted as MX2, which consists of a generic metal M and a generic gaseous halogen X. Given the following thermodynamic the enthalpy of formation of MX2 is ΔHf° = –957 kJ/m...
The molar enthalpy of vaporization of hexane (CH14) is 28.9 kl/mol, and its normal boiling point is 68.73 C What is the vapor pressure
The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is 68.73 °C. What is the vapor pressure of hexane at 25 °C?