Add the following quantities to obtain the correct sum. 2,376 millimeters 515 millimeters 1,883 millimeters + 374 millimeters
What will be an ideal response?
5,148 millimeters
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Gas at constant T and P is contained in a supply line connected through a valve to a closed tank containing the same gas at a lower pressure. The valve is opened to allow flow of gas into the tank, and then is shut again.
(a) Develop a general equation relating 
and 
the moles (or mass) of gas in the tank at the beginning and end of the process, to the properties 
and 
the internal energy of the gas in the tank at the beginning and end of the process, and H?, the enthalpy of the gas in the supply line, and to Q, the heat transferred to the material in the tank during the process.
(b) Reduce the general equation to its simplest form for the special case of an ideal gas with constant heat capacities.
(c) Further reduce the equation of (b) for the case of 
= 0.
(d) Further reduce the equation of (c) for the case in which, in addition, Q = 0.
(e) Treating nitrogen as an ideal gas for which 
apply the appropriate equation to the case in which a steady supply of nitrogen at 25°C and 3 bar flows into an evacuated tank of 4 
volume, and calculate the moles of nitrogen that flow into the tank to equalize the pressures for two cases:
1. Assume that no heat flows from the gas to the tank or through the tank walls.
2. Assume that the tank weighs 400 kg, is perfectly insulated, has an initial temperature of 25°C, has a specific heat of 
and is heated by the gas so as always to be at the temperature of the gas in the tank.
?When hydrocarbon molecules have only single covalent bonds, they are considered ____.
A. ?saturated B. ?hydrolyzed C. ?monounsaturated D. ?polyunsaturated
Traction is greatest when tire slip is greatest
Indicate whether the statement is true or false
In a division problem the number doing the dividing is called the divisor.
Answer the following statement true (T) or false (F)