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A reaction has an equilibrium constant of 8.2 X 10^3 at 298 K. At 764 K , the equilibrium constant is 0.53. Find Delta H rxn for the reaction.
For such systems, it is often observed that the ratio of the vapor pressures of the pure species is nearly constant over a considerable temperature range. Let this ratio be r, and determine the range of values of A, expressed as a function of r, f..
When separating a solid-solid mixture in lab, do the melting points of the two components have to be 30 degrees apart, like with boiling points, to be considered pure, or is it a different range?
A cylinder equipped with a piston expands against an external pressure of 1.58 atm. If the initial volume is 0.485 L
Using bond enthalpies, estimate the heat of the gas phase reaction of methane with bromine to form methyl bromide and hydrogen bromide.
How many molecules of sucrose (table sugar), C12H22O11, dissolved in 450.0 g of water are needed to make a 1.30 m solution?
Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm. Calculate ?E, ?H, and w for these processes
Eugenol can also be isolated from cloves using extraction with CO2. discuss the advantages and disadvantages of distillation versus CO2 extraction.
Water has vapor pressure of 23.8 torr at 25 degrees celsius. Find vapor pressure of water at 40 degrees celsius if delta H of vaporization is 40.7 KJ/mol.
If the absorbance of a sample of Diet Dr. Pepper is 0.215 at 214nm, what percentage of the 214nm radiation falling on the sample passes through it?
Calculate the transformation rate for the austenite-to-pearlite transformation at 650 °C and at 600 °C. Show the relationship(s) you used to arrive at your answers.
What would be the product if dimethyl fumarate (trans-MeO2CCH=CHCO2Me) was heated in the presence of 3-sulfolene?
How much heat is required to vaporize 351 g of liquid ethanol at its boiling point.
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