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Suppose a single component material X has a critical temperature of 350.0 K and critical pressure of 7.50 atm. The triple point pressure of X is 0.500 atm. The density of the liquid phase of X is 0.850 g/cm3, and the density of the solid phase of X is 0.950 g/cm3. The molecular weight of X is 65.0 g/mol. The heat required to melt one mole of the solid phase is 20.0 kJ, the heat required to sublime one mole of the solid phase is 40.0 kJ, and the heat required to vaporize one mole of the liquid phase is 30.0 kJ. You may assume that all of these heats associated with phase transitions are independent of temperature. What is the triple point temperature of material X?
If the reaction is allowed to proceed until all substances have reached their equilibrium concentrations, determine delta G for the reaction.
what is the vapor pressure of the solution at 20 °C? Values at 20 degress celsius
Calculate the resulting CO2 concentration in the atmosphere 30 years from now assuming that we will use only coal to generate electricity. Assume efficiencies of 40% for power plants.
How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0^\circ C, to steam at 110^\circ C. The heat capacity of ice is 2.09 J/g ^\circ {\rm C} and that of steam is 1.84 J/g ^\circ {\rm C}. q=?kJ
What would be the charge of the imidazole side chain of histidine at pH 7? Assume the pKa of the side chain is 6.0. 8) Assume the pKa of the alpha-carboxyl group = 2.0 and the pKa of the alpha-amino group = 10.0. What would be the net charge of gly..
Determine K for the reaction, H2C6H7O6(aq) + 2OH-(aq) = C6H7O6 2-(aq)+ 2H2O(l) given that H2C6H7O6 ka1=8E-5 and Ka2=1.2E-12
What is the composition in mole fractions of the gas mixture that is expelled? The solubilities of CH4 and C2H6 at 20 degrees celcius and 1 atm are .0175 g/L H20 and .059g/L H2O, respectively.
What is the molarity of acetic acid, CH3COOH (MM= 60.0) in vinegar if a 5.00mL sample of vinegar requires 22.50mL of a 0.195M NaOH solution to neutralize it?
Set up the Gibbs energy equation (G) and calculate the Gibbs energy equation at 300 K and at 1300 K? At what temperature is the reaction spontaneous? hint: be very careful with the units of enthalpy and units of entropy.
Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral.
What pressure of O2 would be required to have a solution of 1.5X10^-3g of O2 in 250g of H2O at 298K?
Five constituionally isomeric monochlorides of molecular formula c6h13cl are formed (along with a mixture of dichlorides, trichlorides, etc.) What is the most reasonable structure for the starting alkane? why?
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