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How much heat is produced in burning 3 mol of C2H2 under standard conditions if both reactants and products are brought to 298 K?
Wiki User
∙ 6y ago
This heat of combustion is 3 900 kJ/mol.
Wiki User
∙ 6y ago
Wiki User
∙ 12y ago-1.2995 x 10^4 kJ
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What do standard conditions for a reaction mean?
The standard conditions under which you carry out a reaction are:Carried out at room temperature, 250CA concentration of 1 mol/L for solutions1 atmospheric pressureAll reactants and products must be in physical states that are expected in the above conditions.Standard conditions allow enthalpy changes of different reactions to be compared.
How is the deltaHf related to the deltaH of a reaction?
The enthalpy of formation (deltaHf) is the enthalpy change when 1 mole of a compound is formed from its constituent elements in their standard states. The deltaH of a reaction is the difference in enthalpy between the products and the reactants. The deltaH of a reaction can be calculated by taking the sum of the deltaHf of the products minus the sum of the deltaHf of the reactants.
How many grams of carbon dioxide are produced by the combustion of 224 liters of ethane gas CH in standard conditions?
88
What factors that affect the E cell?
The factors that affect the cell potential (Ecell) of an electrochemical cell include the concentrations of reactants and products, the temperature, and the nature of the electrodes and electrolytes. Changes in these factors can alter the driving force and conditions for redox reactions, ultimately affecting the cell potential.
How do you calculate an equilibrium constant?
An equilibrium constant (K) is calculated by taking the ratio of the concentrations of the products raised to their coefficients in the balanced chemical equation to the concentrations of the reactants raised to their coefficients. The values of the concentrations should be taken at equilibrium.
What do standard conditions for a reaction mean?
The standard conditions under which you carry out a reaction are:Carried out at room temperature, 250CA concentration of 1 mol/L for solutions1 atmospheric pressureAll reactants and products must be in physical states that are expected in the above conditions.Standard conditions allow enthalpy changes of different reactions to be compared.
How is Hf related to the H of a reaction?
The Hreaction is the difference between Hf, products and Hf, reactants
Under what conditions is G for a reaction always positive?
When H is positive and S is negative
What does delta s0 mean?
Delta S0 refers to the standard entropy change in a reaction, which is the measure of the dispersal of energy in a system or reaction at standard conditions (usually 25°C and 1 atm pressure). It represents the difference in entropy between the products and reactants in a reaction.
How is delta hf related to the delta h of the reaction?
The standard enthalpy change of a reaction (delta H) is related to the standard enthalpy of formation (delta Hf) of the products and reactants involved in the reaction by the equation: delta H = Σ(Products delta Hf) - Σ(Reactants delta Hf). This equation relates the enthalpy change of a reaction to the enthalpies of formation of the substances involved in the reaction.
What kind of cell has a negative cell voltage?
An electrolytic cell
How does the H reaction relate to the Hf of molecules involved in a reaction?
Hreaction = Hf products - Hf reactants
How is the deltaHf related to the deltaH of a reaction?
The enthalpy of formation (deltaHf) is the enthalpy change when 1 mole of a compound is formed from its constituent elements in their standard states. The deltaH of a reaction is the difference in enthalpy between the products and the reactants. The deltaH of a reaction can be calculated by taking the sum of the deltaHf of the products minus the sum of the deltaHf of the reactants.
What is the enthalpy of reaction-?
the heat released or absorbed in a reaction
How many grams of carbon dioxide are produced by the combustion of 224 liters of ethane gas CH in standard conditions?
88
What does the delta s 0 mean in a reaction?
The delta S^0 in a reaction refers to the standard entropy change. It represents the difference in entropy between the products and reactants at standard conditions (1 atm and 298 K). A positive delta S^0 indicates an increase in disorder or randomness, while a negative delta S^0 indicates a decrease in disorder.
What factors that affect the E cell?
The factors that affect the cell potential (Ecell) of an electrochemical cell include the concentrations of reactants and products, the temperature, and the nature of the electrodes and electrolytes. Changes in these factors can alter the driving force and conditions for redox reactions, ultimately affecting the cell potential.
