What is the heat of combustion of ethane, $C _2 H _6$, in kilojoules per mole of ethane? Enthalpies of formation can be found in the table of thermodynamic properties.
$\\Delta H^*=1560$ $kJ /$ mol ethane
Answer (1)
The problem provides the heat of combustion of ethane.
The heat of combustion is the heat released during the complete combustion of one mole of a substance.
The given heat of combustion is Δ H ∗ = 1560 kJ/mol.
Therefore, the heat of combustion of ethane is 1560 kJ/mol.
Explanation
Problem Analysis We are given the heat of combustion of ethane, C 2 H 6 , as Δ H ∗ = 1560 kJ/mol. The problem asks for the heat of combustion of ethane in kilojoules per mole of ethane.
Understanding Heat of Combustion The heat of combustion is the amount of heat released when one mole of a substance undergoes complete combustion with oxygen at standard conditions. In this case, we are given that the heat released is 1560 kJ/mol.
Final Answer Since the value is already provided, we simply state the answer.
Examples
The heat of combustion is a crucial concept in various real-world applications, especially in energy production and chemical engineering. For instance, when designing a power plant that uses ethane as fuel, knowing its heat of combustion helps engineers calculate the amount of energy that can be generated from a given amount of ethane. This information is vital for optimizing the plant's efficiency and managing fuel consumption. Similarly, in the automotive industry, understanding the heat of combustion of different fuels allows for the development of more efficient and environmentally friendly engines. The heat of combustion is also essential in assessing the fire hazards associated with flammable materials, guiding safety measures and fire prevention strategies.
