Calculate the rate of heat release of a methane released at a rate of 1x 10^-2 cubic meters/sec from a burner 1 meter in diamter. Assume STP
Calculate the rate of heat release of a methane released at a rate of 1x 10^-2...
2). A contractor stores methane in a 30 liter tank at 10 MPa and 10 C. A worker inadvertently leaves the valve open and the gas escapes to atmosphere. The contractor has to pay a fine of $20 per cubic meter of methane released (measured at atmospheric conditions-100 kPa and 300 K). What is the total fine?
When one molecule of methane combusts with oxygen, 5.74 X 10-21 J is released as heat. How many molecules of methane must undergo combustion to heat up 1 gram of water by 1 degree C. note that this process requires 4.184 J. IF one molecule of methane has a mass of 2.66 X 10-23g, how many total grams of methane are required?
2. (4 pts.) The rate of destruction of methane in the stratosphere is approximately: 3 x 103 molecules cm 3s (molecules per cubic centimeter per second). Convert the rate of destruction of methane to units of grams cm3y-1 (grams per cubic centimeter per year).
a) A natural gas fuel contains 80 v/o methane, 10 v/o ethane, and 10 v/o propane. Determine the heat released by combustion of 1m3 of the gas. Assume that products of combustion are CO2 and liquid H2O. b) How would the answer to part (a) change if the water produced were vaporized?
travelling south at a rate of 20 miles/hr while B is travelling east at 30 mi/hr. How fast is the distance between them changing 1 hour later a. 2 miles /hour b. 4 miles/hour c. 5 miles/hour d. 6 miles/hour 16. The depth of the water in a cylind rical tank 4 m in diameter is increasing at the rate of 0.7 m/min. Find the rate at which the water flowing into the tank a. 5.8 cubic meter per minute...
The pipe in below figure is 50 centimeter in diameter and carries water at a rate of 0.5 cubic meter per second. Pressures at sections 1 and 2 are 70 kPa gage and 350 kPa gage respectively. Assume major and minor energy loss sum (h)of 3 meters between points 1 and 2 (20 pt) 2 a. Calculate the flow velocities at sections 1 and 2 in m/sec? 10m Pump b. What power in kilowatts must be supplied ITIITTI77 to the...
1.f) Methane gas (CH4) enters a combustion chamber at a rate of 3 kg/sec at a temperature of 25 °C. A 200% theoretical air is supplied at a temperature of 400K. At the middle of methane combustion process (i.e., after 50% of methane gas is burnt), liquid propane (C3H8) at 25°C is injected at a rate that produces neither CO nor O2 in the flue gases. Assume steady state and adiabatic process at 1 atm, calculate the following i. The...
Calculate the net heat absorbed/released.
9.44 paisun is 3.5 10 Ps10a
3. Using the given conversion factors, calculate the residence time of methane in an atmospheric condition where the steady state influx concentration is 1.75 ppv and the total release of methane from all sources is 550 million tons per year [2000lbs- ton, 2.2 lbs-1 kg, average molecular weight of air molecules is 29 g/mol, total mass of the atmosphere = 5.27 x 10' kg ] {Hint: Residence time= [steady- state amount of substance in the reservoir][rate of inflow to (or...
LALAAM Heat of combustion I Name Calculate the following using the table provided: Assume complete combustion Methane Table 10.5 Standard Heats of Combustion at 25°C Substance Formula Akimo Hydrogen Hla) -296 Carbon Cisl graphite -394 Carbon monoxide CO(g) CH ) -890 Methanol CH,CH(0) Acetylene CH() Ethanol C,H,OHCO 1200 Propane CH() -2220 Benzene CH CH 0 (5) Octane CH -5471 Sucroso CH20,(s) -5645 -1300 1. Calculate the energy released when 56.7g of His burned. 2. If 3572 kJ of energy were...