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The following equation represents the decomposition of a generic diatomic element in its standard state.
1/2 X2(g) ---> X(g)
Assume that the standard molar Gibbs energy of formation of X(g) is 5.45 kJ·mol-1 at 2000. K and -66.10 kJ·mol-1 at 3000. K.
a) Determine the value of K (the thermodynamic equilibrium constant) at each temperature.
b) Assuming that ?H°rxn is independent of temperature, determine the value of ?H°rxn from these data.
An auto bumper is coated with a layer of chromium, 0.017 cm thick. The bumper has a surface area of 3.43 x 104 cm2. The density of chromium metal is 7.19 g/cm3. How many atoms of chromium are used in the coating?
A student determines the mass of a bone to be 23.3751g. A 50 mL graduated cylinder contains 30.3 mL of water. When the bone is placed in the water-filled cylinder,
What mass of Aluminum is produced when 0.5 mole of Al2S3 is completely reduced with excess H2?
A patient has 48 ml. of blood drawn and this volume of blood has a mass of 39.5 g. what is the specific gravity of the blood?
When 2-chloro-2-methylbutane is treated with a variety of strong bases, the products always seem contain two isomers (A and B) of formula C5H10.
110 mL of H_2O is initially at room temperature (22.0 degrees C). A chilled steel rod at 2.0 degrees C is placed in the water. If the final temperature of the system is 21.0 degrees C.
A student mixed 75.0 mL of water containing 0.75 mol HCl at 25 degrees C with 75.0 mL of water containing 0.75mo of NaOH at 25 degrees in a foam up calorimeter. The temperature of the resulting solution increased to 35 degrees C.
what is the calculated value of partial pressure of o2 in acid mine water of ph 2 in which fe2+=fe3+.
show the path an electron takes when orbiting an atom describe regions of space in which one is most likely to find an electron.
where its latent heat of vaporization is 20.4 kJ/mol. Its molar mass is 70.91 g/mol. (a) Calculate the internal energy change (deltaU) for vaporization of 100 g of Cl2(liq.)
The answer to Kinetics, The symmetry factor Beta was determined to be 0.4 for an activation controlled Ag deposition process. At overpotential n = -0.400 V the current density was found to be j = -5.125 A/dm^2.
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SI2. Determine the number of bonding electrons and the number of nonbonding electrons in the structure of CO2.
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