Question

определить стандартный тепловой эффект реакции горения метана.

Answer 1

Экзотермический тепловой эффект

Answer 2

Standard Heat of Combustion of Methane

The standard heat of combustion of methane is the amount of heat released when one mole of methane (CH4) undergoes complete combustion in excess oxygen under standard conditions. It is a measure of the energy content of methane and is typically expressed in units of kilojoules per mole (kJ/mol).

Unfortunately, the search results provided do not contain specific information about the standard heat of combustion of methane. However, it is a well-known fact in chemistry that the standard heat of combustion of methane is approximately -890 kJ/mol.

Please note that the value provided is an approximation and may vary slightly depending on the source and the specific conditions under which the measurement was made.

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Answer 3

Standard Heat of Combustion of Methane

The standard heat of combustion of methane is the amount of heat released when one mole of methane (CH4) undergoes complete combustion in excess oxygen to form carbon dioxide (CO2) and water (H2O) at standard conditions. The reaction can be represented as follows:

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) + Q

Where Q represents the heat released during the reaction.

The standard heat of combustion of methane is approximately -802 kJ/mol.

It is important to note that the standard heat of combustion can vary depending on the conditions and assumptions made. The value provided here is for standard conditions, which typically include a temperature of 298 K (25°C), a pressure of 1 atmosphere, and all reactants and products in their standard states.

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