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Outline the phase diagram of the system nh3/n2h4 given that the two substances don't form a compound with each other, that nh3 freezes at -78 C and n2h4 freezes at +2 C and that a eutectic is formed while the mole fraction of n2h4 is 0.07 and that the eutectic melts at -80 C.
in july in los angeles the incident sunlight at ground level has a power density of 1.2 kw m-2 at noon. a swimming pool
Estimate how much heat is required to melt a single snowflake using heat capacity relationships. Assume there are 500 water molecules in a snowflake.
which catalysts are used for the polymerization of tetraflouroethene to form teflon? and for the polymerization of
D=(KBT)/6 xpie xr x n The HIV-1 virus has a radius of about 50 nm. The viscosity coefficient of water at 20 °C is 1.00 mPa·s. How far will a particle of HIV-1 typically travel in 1 minute
in the olympics and other major athletic competitions a gc-ms is used to screen athletes for their use of banned
Calculate the enthalpy change, , for the process in which 41.5 of water is converted from liquid at 2.1 to vapor at 25.0.
How much heat is required to melt 48.5g of ice at its melting point. Express your answer numerically in kilojoules.
In a certain experiment a sample of helium in a vacuum system was compressed at 25 degrees C from a volume of 200.0 mL to a volume of 0.240 mL where its pressure was found to be 30.0 mm Hg. What was the orginal pressure of the helium
2 NaClO3-> 2 NaCl + 3 O2 Determine the number of moles of O2 produced by the decomposition of 213 g of NaClO3.
a.the density of liquid oxygen at its boiling point is 1.14 and its heat of vaporization is 213.nbsphow much energy in
Calculate the pressure of O2 (in atm) over a sample of NiO at 25 degrees Celcius if the delta G standard = 212 kJ/mol for the reaction: NiO(s) Ni(s)+(1/2)O2(g)
A 2.00 gram peanut is burned in a bomb calorimeter containing 1234 grams of water. The temperature of the water increases from 25.00 Celsius to 30.25 Celsius.
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