Question

In: Chemistry

1. Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.73...

1. Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.73 moles of CO(g) react at standard conditions.

CO(g) + Cl2(g)COCl2(g)

2. Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.00 moles of NH4NO3(aq) react at standard conditions.

NH4NO3(aq)N2O(g) + 2H2O(l)

3. Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.35 moles of CO2(g) react at standard conditions.

6CO2(g) + 6H2O(l)C6H12O6 + 6O2(g)

Solutions

Expert Solution

Ans:) we need to find the moles of each reactant and product first then we can find the enteopy of reaction using standard entropies.

Thank you!


Related Solutions

1. Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.73...
1. Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 1.73 moles of Fe2O3(s) react at standard conditions. 3Fe2O3(s) + H2(g)2Fe3O4(s) + H2O(g) 2. Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 2.00 moles of CO(g) react at standard conditions. 2CO(g) + O2(g)2CO2(g) 3. Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings when 2.35 moles of H2O(l) react at standard conditions. 2H2O(l)2H2(g) + O2(g)
1) Calculate the change in entropy that occurs in the system when 22.0 g of acetone...
1) Calculate the change in entropy that occurs in the system when 22.0 g of acetone (C3H6O) vaporizes from a liquid to a gas at its normal boiling point (56.1 ∘C). Express your answer using three significant figures. 2) Consider the reaction between nitrogen and oxygen gas to form dinitrogen monoxide: 2N2(g)+O2(g)→2N2O(g),ΔHrxn=+163.2kJ Calculate the entropy change in the surroundings associated with this reaction occurring at 25∘C. Express the entropy change to three significant figures and include the appropriate units.
3.- ENTROPY EXERCISES. From the absolute entropy values calculate the standard entropy changes (ΔS °) of...
3.- ENTROPY EXERCISES. From the absolute entropy values calculate the standard entropy changes (ΔS °) of the following reactions at 25 C a.-                               CaCO3(s) →→→ CaO (s)     + CO2(g) b.-                               N2(g)   +      3H2(g)      →→→    2NH3(g) c.-                               H2(g)     +     Cl2(g)   →→→   2HCl (g) TABLE OF VALUES OF STANDARD ENTROPY (S °): COMPOUND Standard Entropy (S°):     J/ K-mol CaCO3(s) 92.9 CaO (s) 39.8 CO2(g) 213.6 N2(g)   192 H2(g)      131 NH3(g) 193 Cl2(g)   223 HCl (g) 187
1. C2H4(g) + H2O(g)<->CH3CH2OH(g) Using standard thermodynamic data at 298K, calculate the free energy change when...
1. C2H4(g) + H2O(g)<->CH3CH2OH(g) Using standard thermodynamic data at 298K, calculate the free energy change when 2.000 moles of C2H4(g) react at standard conditions. 2. 2BrF3(g)Br2(g) + 3F2(g) Using standard thermodynamic data at 298K, calculate the free energy change when 2.27 moles of BrF3(g) react at standard conditions.
Calculate the change in entropy that occurs in the system when 55.0 g of water vaporizes...
Calculate the change in entropy that occurs in the system when 55.0 g of water vaporizes from a liquid to a gas at its boiling point (100.0?C).?Hvap = 40.7 kJ/mol
Calculate the change in entropy that occurs in the system when 45.0 grams of acetone (C3H6O)...
Calculate the change in entropy that occurs in the system when 45.0 grams of acetone (C3H6O) freezes at its melting point (-98.8 oC). (Heat of fusion is 5.69 kJ/mol)
Using the standard values of enthalpy changes (ΔH°) and entropy change (ΔS°) to calculate the Gibbs...
Using the standard values of enthalpy changes (ΔH°) and entropy change (ΔS°) to calculate the Gibbs free energy change for the production of following metallic elements from their ore sources: (a) 2ZnO(s) 2Zn(s) + O2(g) (b) 2CaO(s) 2Ca(s) + O2(g) (c) 2Al2O3(s) 4Al(s) + 3O2(g) (d) 2MgO(s) 2Mg(s) + O2(g)
Calculate the change in Entropy
A 288 kg block of ice at 0∘C is placed in a large lake the temperature of the lake is just slightly higher than 0∘C and the ice melts very slowly.   i) what is the entropy change of ice  
a) Calculate the entropy change of the UNIVERSE when 1.732 moles of CO2(g) react under standard...
a) Calculate the entropy change of the UNIVERSE when 1.732 moles of CO2(g) react under standard conditions at 298.15 K. 6CO2(g) + 6H2O(l)C6H12O6 + 6O2(g) for which H° = 2.801×103 kJ and S° = -259.0 J/K at 298.15 K. b) Is this reaction reactant or product favored under standard conditions? c) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored, choose 'reactant favored'.
Calculate the entropy change of the UNIVERSE when 2.001 moles of H2O(g) react under standard conditions...
Calculate the entropy change of the UNIVERSE when 2.001 moles of H2O(g) react under standard conditions at 298.15 K. Consider the reaction 2H2O(g) + 2Cl2(g)4HCl(g) + O2(g) for which H° = 114.4 kJ and S° = 128.9 J/K at 298.15 K. (2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored, choose 'reactant...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT