An ordinary octane gasoline (C8H18) is to burn inside an internal combustion engine cylinder with 50 % excess air.  Show the actual combustion equation.  Determine the actual air fuel ratio. Determine the mass of wet products of combustion per kg and the mass of dry products of combustion per kg fuel.

4.) Steam undergoes an Isentropic process where it is initially at 1.30 MPa and 200 C then it expands to a pressure of 0.75 MPa, thus becoming wet steam. What is the dryness of the steam and the change in enthalpy for the process? • 100%, -2766.4 kJ/kg • 98.75, -68.94 kJ/kg • 200%, -2809.7 kJ/kg • 96.95%, -105.94 kJ/kg

The planet Mars has an atmosphere of mostly COz (95%). (You can assume that Mars atmosphere is100% COz). The molecular weight of COz is 44. The temperature at "night" is cold at -140°C (i.e. minus 140° Celsius).. The temperature at "noon" during the day is +26°C. What is its velocity of sound "c"during the day and during the night (in m/s) on Mars?

A feed column has the composition given in the table below, and it at as a pressure of 30 bar and at a temperature of 400C. Calculate the flow of the liquid and vapor phases.    Feed kmol/h ethane 20 propane 20 isobutane 20 n-pentane 20

Question 10 please

Please label if any values from a steam table/interpolation are used

Not hand writing solution provide text solution

At 150 °C, linalyl acetate exerts a vapor pressure of 93 tor. If a steam still were run using steam heated to this temperature in place of boiling water, how much water must co-distill to collect 1.0 grams of linalyl acetate? Include your calculations.

05: Acetylene gas (C₂H₂) at 25 °C is burned during a steady-flow combustion process with 30 percent excess air at 27 °C. It is observed that 75x10³ kJ of heat is being lost from the combustion chamber to the surroundings per kmol of acetylene. Assuming combustion is complete, determine the exit temperature of the product gases.

a) How many rotational degrees of freedom are there in a CO2 molecule and in a H2O molecule?b) If the temperature of a low-pressure CO2 gas is raised high enough to completely excite its rotational and vibrational modes, what will be its specific heats cv and cp? Express answers in both kJ/kg K and kJ/kmol·K.