0
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
Add your answer:
Earn +20 pts
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 many grams of carbon dioxide are produced by the combustion of 224 liters of ethane gas CH in standard conditions?
88
How do you calculate an equilibrium constant?
Kp = (P-product)(P-product) --------------------------- (P-reactant)(P-reactant) its always products over reactants, you can always re-arrange the formula to find the pressure of one of the products or reactants.
What explains the entropy change of a gas reaction?
if there is an increase in the number of gas molecules , then ^S > 0
Chemical equation has how many parts?
Most chemical equations have a few standard elements (no pun intended). There are the reactants on the left side, the arrow showing the direction of the reaction, and the products on the right side. Sometimes, properties of the reaction such as the enthalpy is shown after the equation. Often times, especially in organic chemistry, there will be other compounds or parameters written above and/or below the reaction arrow to indicate what chemicals were needed to make the reaction occur.
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.
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
How do you calculate an equilibrium constant?
Kp = (P-product)(P-product) --------------------------- (P-reactant)(P-reactant) its always products over reactants, you can always re-arrange the formula to find the pressure of one of the products or reactants.
What is the basic difference between enthalpy of formation?
Standard Heat (Enthalpy) of Formation, Hfo, of any compound is the enthalpy change of the reaction by which it is formed from its elements, reactants and products all being in a given standard state.By definition, the standard enthalpy (heat) of formation of an element in its standard state is zero, Hfo = 0.Standard Molar Enthalpy (Heat) of Formation, Hmo, of a compound is the enthalpy change that occurs when one mole of the compound in its standard state is formed from its elements in their standard states.Standard Enthalpy (Heat) of Reaction, Ho, is the difference between the standard enthalpies (heats) of formation of the products and the reactants.Ho(reaction) = the sum of the enthalpy (heat) of formation of products - the sum of the enthalpy (heat) of formation of reactants: Ho(reaction) = Hof(products) - Hof(reactants)To calculate an Enthalpy (Heat) of Reaction:Write the balanced chemical equation for the reaction Remember to include the state (solid, liquid, gas, or aqueous) for each reactant and product.Write the general equation for calculating the enthalpy (heat) of reaction: Ho(reaction) = Hof(products) - Hof(reactants)Substitute the values for the enthalpy (heat) of formation of each product and reactant into the equation. Remember, if there are 2 moles of a reactant or product, you will need to multiply the enthalpy term by 2, if molar enthalpies (heats) of formation are used.Standard Enthalpy (Heat) of FormationExample: Standard Enthalpy (Heat) of Formation of WaterThe standard enthalpy (heat) of formation for liquid water at 298K (25o) is -286 kJ mol-1. This means that 286 kJ of energy is released when liquid water, H2O(l), is produced from its elements, hydrogen and oxygen, in their standard states, ie, H2(g) and O2(g).This reaction is written as:H2(g) + ½O2(g) -----> H2O(l) Hfo = -286 kJ mol-1The standard enthalpy (heat) of formation of water vapour at 298K (25o) is -242 kJ mol-1.This means that 242 kJ of energy is released when gaseous water (water vapour), H2O(g), is produced from its elements, hydrogen and oxygen, in their standard states, ie, H2(g) and O2(g).This reaction is written as:H2(g) + ½O2(g) -----> H2O(g) Hfo = -242 kJ mol-1
What explains the entropy change of a gas reaction?
if there is an increase in the number of gas molecules , then ^S > 0
What is the meaning of a generic warranty?
A generic warranty is often a warranty placed on a product or service that is standard within the industry in which it is offered or produced. You will find many companies have generic warranties on their products when they manufacture many different types of products.
How much weight a standard table can support?
About a standard amount given standard conditions.
What is the mass at standard conditions if the weight of an object is 50 pounds?
An object that weighs 50 pounds at standard conditions has a mass of 22.680 kilograms.
how do you identify with customer service characteristics in terms of their quantitative nature?
To meet their standard of products they want
Chemical equation has how many parts?
Most chemical equations have a few standard elements (no pun intended). There are the reactants on the left side, the arrow showing the direction of the reaction, and the products on the right side. Sometimes, properties of the reaction such as the enthalpy is shown after the equation. Often times, especially in organic chemistry, there will be other compounds or parameters written above and/or below the reaction arrow to indicate what chemicals were needed to make the reaction occur.
What products does the company Standard Horizon sell?
Standard Horizon sells outdoor communication products. Some of their best known products are walkie-talkies or small GPS transmitters. The main aspect are marine products.
