t is a combustion reaction of ethanol, volume is increasing from 0.02 m3 to 0.04 m3 with a starting temperature of 4000 K. Also the amounts are known. (12g ethane and enough oxygen)Chestermiller said:What parameters do you know about the gas in its initial state before the expansion?
Chet
You know the initial volume, the initial number of moles of gas, and the initial temperature. From the ideal gas law, what do you get for the initial pressure?Egbert said:I
t is a combustion reaction of ethanol, volume is increasing from 0.02 m3 to 0.04 m3 with a starting temperature of 4000 K. Also the amounts are known. (12g ethane and enough oxygen)
Thanks
Reversible adiabatic expansion is a thermodynamic process in which a gas expands without any heat exchange with its surroundings. This means that the gas expands and its temperature decreases, but there is no heat added or removed from the system.
The work done by product gas in reversible adiabatic expansion is calculated using the formula W = -PΔV, where P is the pressure of the gas and ΔV is the change in volume of the gas during the expansion process.
Reversible adiabatic expansion is important in scientific research because it allows us to understand the behavior of gases and their thermodynamic properties. It also has practical applications in various industries, such as in the production of compressed gases and refrigeration systems.
The main difference between reversible and irreversible adiabatic expansion is that reversible expansion is a theoretical process that occurs without any energy loss, while irreversible expansion involves some energy loss due to friction and other factors. Reversible expansion also follows the laws of thermodynamics, while irreversible expansion does not.
Reversible adiabatic expansion is an example of a process that follows the first law of thermodynamics, which states that energy cannot be created or destroyed, only transferred or converted. In this process, the change in internal energy of the gas is equal to the work done by the gas, as there is no heat exchange involved.