Which one of the following statements is true? Enthalpy is a state function. The enthalpy change of a reaction is the reciprocal of the ΔΔH of the reverse reaction. Enthalpy is an intensive property. H is the value of q measured under conditions of constant volume. The enthalpy change for a reaction is independent of the state of the reactants and products.

Q: The enthalpy changes for two reactions are given. Br2 (l) + F2 (g) → 2BrF (g)         ΔH = x kJ Br2…

A: The enthalpy changes of the two reactions are as follows: Br2(l) + F2(g) → 2BrF(g)…

Q: How much heat is produced by the complete combustion of 264 gg of CH4CH4?

A: Given:CH4g+2O2g→CO2g+2 H2Og∆Hrxn°=-802.3 kJ

Q: The enthalpy change for the reaction of hydrogen gas with fluorine gas to produce hydrogen fluoride…

A: The formation of hydrogen fluoride from hydrogen gas and fluorine gas is expressed as, H2g+F2g→2HFg…

Q: Calculate the standard enthalpy for the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g), given the…

A: Hess's law states that the enthalpy change for an overall reaction is the sum of enthalpy changes of…

Q: Given the following two reactions and their enthalpy changes,             2 ClO2 (g)   -->   Cl2…

A:

Q: Pentane (C5H12)(C5H12) is a component of gasoline that burns according to the following balanced…

A: We have C5H12(l)+8O2(g)→5CO2(g)+6H2O(g) The standard enthalpy of formation of liquid pentane is…

Q: 2NO(g) + 02(g)–2NO2(g) Based on this value and the standard enthalpies of formation for the other…

A: Given  2NO (g) + O2 (g) ---> 2 NO2 (g)  ∆H rxn = -112.0 KJ  ∆H°f (NO2) = ?

Q: Consider the two reactions. 2NH3(g)+3N2O(g)⟶4N2(g)+3H2O(l)            Δ?∘=−1010 kJ…

A: The given equations are:

Q: the combustion of magnesium metal releases thermal energy and light energy. This combustion reaction…

A: In certain reactions, when the reaction proceeds forward, the reaction expels heat. In the other…