Engineering, 20.04.2020 22:09, trejoarmando061
Energy is released when hydrogen and oxygen react to produce water. This energy comes from the fact that the final hydrogen-oxygen bonds represent a lower total energy states compared to the original hydrogen-hydrogen and oxygen-oxygen bonds. Calculate how much energy (in kilojoules per mole of product) is released by the reaction:
1/2 O2 + H2 → H2O
at constant pressure and given the following standard bond enthalp enthalpies denote the enthalpy absorbed when bonds are broken at ture and pressure (298 K and 1 atm).
H-H : 432 kJ/mol
O=O : 494 kJ/mol
H-O : 460 kJ/mol
Answers: 2
Other questions on the subject: Engineering
Engineering, 03.07.2019 14:10, makaylashrout77
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
Answers: 2
Engineering, 03.07.2019 15:10, breannaasmith1122
Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.
Answers: 1
Engineering, 04.07.2019 16:10, TheOriginalMeyah
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
Answers: 2
Engineering, 04.07.2019 18:10, yasminothman02
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
Do you know the correct answer?
Energy is released when hydrogen and oxygen react to produce water. This energy comes from the fact...
Questions in other subjects:
Mathematics, 17.09.2019 09:00
Chemistry, 17.09.2019 09:00
