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A piston cylinder device contains 3kg of helium at 600 degrees celcius, 300 kPa.
(A)A process takes place such that the volume of the helium increases by 50% and the pressure becomes 150 kPa. determine the final temperature of the helium, degrees celcius.
(B)During the process the internal energy of the helium decreases by 682 kJ/kg, and the helium does 982Kj/kg of work on the piston. Determine the amount of heat transfer that occurred during the process, in kJ, and it direction.
The largest estimate for the amount of water on the moon is currently 1000parts per million (i.e 1000g water per 1000000g of salt). if the moon is made primarily of a pyroxene mineral with formula Fe2Si2O6 what is the "formula" of the hydrate with..
What is the concentration (in M) of the chloride ion when 16.2 mL of a 0.542 M solution of barium chloride is combined with 18.4 mL of a 0.619 M solution of aluminum chloride? Assume the volumes are additive.
the activation energy for the decomposition of hydrogen peroxide is 43 kjmol whereas when the reaction is catalyzed by
Explain the use of beta-alanine? Is it used as a H+ source, or something else? Why can malonic acid be reacted in V-D modification, while only its ester can be reacted in standard Knoevenagel condensation conditions?
As NaOH is added to the column, the pH of the effluent is monitored carefully. After 2 mL of 0.4 M NaOH has been added, the effluent pH changes dramatically. Estimate the total column capacity in milliequivalents from this information.
choose the situation below that would result in an exothermic hsolution. question options when h soetel h hyd when h
the first order rate constant for the decomposition of n2o5 to no2 and o2 at 70 degree celsius is 6.82 x 10-3 s-1.
The total heat of hydration of 1 mol of gas Li ions and Cl ions is -865 kJ. The lattice energy of LiCl is 828 kJ/mol. Calculate the heat of solution of LiCl.
The vapor pressure of mercury is .0127 torr at 50 degrees celcius and .0888 torr at 80 degrees celcius. calculate the enthalpy of vaporization of mercury
A catalyst has a avoid fraction of 0.40, an internal surface area of 180 m2/g and a pellet density of 1.40 g/cm3. Estimate the effective diffusivity of thiophene with hydrogen
How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 L of water if the coldest winter temperature in your area is -37°C
the density of an aqueous ethanol solution is .789 g/mol. How many grams of ethanol should be mixed with water to make 225mL to make a 4.5% ethanol solution?
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