For the reaction
A(aq) ---> B(aq)
the change in the standard free enthalpy is 2.59 kJ...
For the reaction
A(aq) ---> B(aq)
the change in the standard free enthalpy is 2.59 kJ at 25
oC and 4.73 kJ at 45 oC. Calculate the value
of this reaction's equilibrium constant at 75 oC.
a) For the reaction: A(aq) ---> B(aq) the change in the
standard free enthalpy is 2.83 kJ at 25 oC and 4.61 kJ
at 45 oC. Calculate the value of this reaction's
equilibrium constant at 75 oC.
b) A container encloses 31.1 g of CO2(g). The partial
pressure of CO2 is 2.66 atm and the volume of the
container is 25.9 L. What is the average, or root mean square,
speed (in m/s) of the CO2 molecules in this
container?
For the reaction 2 A(aq) <---> B(aq) + C(aq), the standard
Gibbs free enthalpy change is 1.69 kJ at 25oC. The initial
concentration of A(aq) is 0.549 M, the initial concentration of
B(aq) is 0.327 M, and the initial concentration of C(aq) is 0.234
M. What would be the concentration of A(aq) (in mol/L) once we
attain equilibrium (we are still at 25oC)?
A reaction
A(aq) + B(aq) --> C(aq)
has a standard free-energy change of –3.23 kJ/mol at 25 °C. What
are the concentrations of A, B, and C at equilibrium if, at the
beginning of the reaction, their concentrations are 0.30 M, 0.40 M,
and 0 M, respectively?
A reaction: A (aq) + B (aq) <-----> C (aq) has a standard
free energy change of -3.05 kJ/mol at 25 C. What are the
concentrations of A, B, and C at equilibrium if, at the beginning
of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M,
respectively?
A = ? M
B= ? M
C= ? M
How would your answer above change if the reaction had a
standard free energy change of +3.05 kJ/mol?
A.)...
A reaction
A (aq) + B (aq) <--> C (aq)
has a standard free-energy change of –3.85 kJ/mol at 25 °C. What
are the concentrations of A, B, and C at equilibrium if, at the
beginning of the reaction, their concentrations are 0.30 M, 0.40 M,
and 0 M, respectively?
[A]= M
[B]= M
[C]= M
A scientist measures the standard enthalpy change for the following
reaction to be -613.2 kJ :
P4O10(s) + 6
H2O(l)-->4H3PO4(aq)
Based on this value and the standard enthalpies of formation for
the other substances, the standard enthalpy of formation of
H3PO4(aq) is kJ/mol.
A reaction
A + B <==> C
has a standard free-energy change of -3.27 kJ/mol at
25oC
What are the concentrations of A, B, and C at equilibrium if at the
beginning of the reaction their concentrations are 0.30M, 0.40M and
0M respectively?
a) The standard enthalpy change for the following reaction is
-270 kJ at 298 K.
2HCN (g) --> 2 C(s, graphite) + H2 (g) + N2 (g)
ΔH° = -270 kJ
What is the standard enthalpy change for this reaction at 298
K?
C (s, graphite) + 1/2 H2(g) + 1/2 N2(g) ---> HCN(g)
_______ kJ
A.) The standard enthalpy change for the following reaction is
359 kJ at 298 K.
PbCl2(s) ----> Pb(s) +
Cl2(g) ΔH° = 359
kJ
What is the standard enthalpy change for this reaction at 298
K?
Pb(s)
+ Cl2(g) ---->
PbCl2(s)
__________ kJ
B.) The standard enthalpy change for the following reaction is
-602 kJ at 298 K.
Mg(s)
+ 1/2 O2(g)
----> MgO(s) ΔH° =
-602 kJ
What is the standard enthalpy change for the reaction at 298
K?
2...
The standard enthalpy change for the following reaction is -170
kJ at 298 K. 2 Cu(s) + 1/2 O2(g) Cu2O(s) ΔH° = -170 kJ What is the
standard enthalpy change for the reaction at 298 K? 4 Cu(s) + O2(g)
2 Cu2O(s)
A student determines the heat of dissolution of solid cobalt(II)
chloride using a coffee-cup calorimeter of negligible heat
capacity. When 1.33 g of CoCl2(s) is dissolved in 111.00 g of
water, the temperature of the solution increases from...