Given the relative costs, making diamond from graphite would appear to be an economically sound proposition....
Given the relative costs, making diamond from graphite would appear to be an economically sound proposition. The free energy difference for the process:
C (s, graphite) ----> C (s, diamond)
s ∆Gθ = 2.900 kJ/mol at 25oC. The densities of these materials are density diamond = 3.51 g/cm3 and density of graphite = 2.26 g/cm3 . Estimate the pressure required to convert graphite to diamond.
Homework Answers
Add Answer to:
Given the relative costs, making diamond from graphite would
appear to be an economically sound proposition....
8. Given the relative costs, making diamond from graphite would appear to be an economically sound...
8. Given the relative costs, making diamond from graphite would appear to be an economically sound proposition. The standard free energy difference for the solid-solid phase change C(s, graphite)C(s, diamond) is Δ๔ : μdiamond-graphite-2.900 kJ mol-1 (at 25°C), The densities of these materials are ρ(diamond): 3.51 g cm-3 and ρ(graphite): 2.26 g cm-3. Estimate the pressure required to convert graphite to diamond
1. Determine the standard Gibb's free energy change for the conversion of diamond into graphite in...
1. Determine the standard Gibb's free energy change for the
conversion of diamond into graphite in units of kJ/mol and is it
spontaneous, nonspontaneous, or neither.
Cdiamond (s) ?
Cgraphite (s)
f° for diamond =
2.9 kJ/mol
f° for graphite =
0.0 kJ/mol (Please be careful wtih sig figs.)
2. For the following reaction, = 68.1 kJ/mol:
2 C(s) + 2 H2(g) ?
C2H4(g)
Determine for the reaction in units of
kJ/mol at 1800. K, a partial pressure of C2H2
of...
2. Consider the following phase transition: C (graphite) - C(diamond). (a) (6 points) The temperature dependence...
2. Consider the following phase transition: C (graphite) - C(diamond). (a) (6 points) The temperature dependence of reaction Gibbs energy. AGA, for the above reaction is given by AG (mol) = 1895 +3.3637 at 1 atm. Calculate AH, and AS, at 298.15K and 1 atm. (b) [9 points) The density of diamond is 3.52 g/ml and that of graphite is 2.25 g/ml. The formation free energy (AG) of diamond is 2.90 kJ/mol and that of graphite is zero at 298.15...
Problem. 4·The extent of reaction generally depends on pressure as well as temperature. For the reaction...
Problem. 4·The extent of reaction generally depends on pressure as well as temperature. For the reaction C (graphite)C (diamond) the standard state free energy change at 25 C is 2866 J/mol. The density of graphite is 2.25 g/cc and that of diamond is approximately 3.51 g/cc; both solids may be considered to be incompressible. To help chemical engineering students pay their tuition, we are thinking of setting up equipment to run this reaction in the senior laboratory. Estimate what pressure,...
8. Given the relative costs, making diamond from graphite would appear to be an economically sound proposition. The standard free energy difference for the solid-solid phase change C(s, graphite)C(s, diamond) is Δ๔ : μdiamond-graphite-2.900 kJ mol-1 (at 25°C), The densities of these materials are ρ(diamond): 3.51 g cm-3 and ρ(graphite): 2.26 g cm-3. Estimate the pressure required to convert graphite to diamond
1. Determine the standard Gibb's free energy change for the
conversion of diamond into graphite in units of kJ/mol and is it
spontaneous, nonspontaneous, or neither.
Cdiamond (s) ?
Cgraphite (s)
f° for diamond =
2.9 kJ/mol
f° for graphite =
0.0 kJ/mol (Please be careful wtih sig figs.)
2. For the following reaction, = 68.1 kJ/mol:
2 C(s) + 2 H2(g) ?
C2H4(g)
Determine for the reaction in units of
kJ/mol at 1800. K, a partial pressure of C2H2
of...
2. Consider the following phase transition: C (graphite) - C(diamond). (a) (6 points) The temperature dependence of reaction Gibbs energy. AGA, for the above reaction is given by AG (mol) = 1895 +3.3637 at 1 atm. Calculate AH, and AS, at 298.15K and 1 atm. (b) [9 points) The density of diamond is 3.52 g/ml and that of graphite is 2.25 g/ml. The formation free energy (AG) of diamond is 2.90 kJ/mol and that of graphite is zero at 298.15...
Problem. 4·The extent of reaction generally depends on pressure as well as temperature. For the reaction C (graphite)C (diamond) the standard state free energy change at 25 C is 2866 J/mol. The density of graphite is 2.25 g/cc and that of diamond is approximately 3.51 g/cc; both solids may be considered to be incompressible. To help chemical engineering students pay their tuition, we are thinking of setting up equipment to run this reaction in the senior laboratory. Estimate what pressure,...
Most questions answered within 3 hours.
-
SO₂Cl₂(g) ⇌ SO₂(g) + Cl₂(g) Kp = 2.39 at 100°C. A quantity of
SO₂Cl₂ was introduced...
asked 7 minutes ago -
1. Using the ArrayList add() method, write the statement to
insert “July” in the first position...
asked 10 minutes ago -
Find the value of z such that 62.9% of the total area is to the
left...
asked 13 minutes ago -
How many moles are in 169 kg of Au?
asked 21 minutes ago -
If
a measure entity (thing) is a vector how many different types of
information are required...
asked 24 minutes ago -
A speeding driver sees a police officer, hits her brakes, and
changes her speed from 45...
asked 24 minutes ago -
Calculate the Molarity, M, of a solution that was prepared by
dissolving 734 grams of lithium...
asked 26 minutes ago -
Give a chemical reaction for the reaction of 2-butanol with
chromium trioxide
asked 37 minutes ago -
Community relations are a large part of business outreach and
growing a brand. If you've been...
asked 46 minutes ago -
One way to measure the amount of energy that is expended during
exercise is to use...
asked 42 minutes ago -
What is the Erikson 8 stages of development theory’s relevance
and application to individuals, families, groups,...
asked 56 minutes ago -
Consider a dataset on house sales that is used to regress Y =
selling price of...
asked 1 hour ago