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3 years ago

Propane burns in air to form water vapor and another gas. What is the volume of the water vapor at 500°C and 1 atm?

Chemistry

1 answer:

kakasveta [241]3 years ago

7 0

Answer:

253.85 L

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O

From the balanced equation above, 4 moles of water vapor were produced.

Finally, we shall determine the volume of the water vapor produced as follow:

Mole water vapor (n) = 4 moles

Pressure (P) = 1 atm

Temperature (T) = 500 °C = 500 °C + 273 = 773 K

Gas constant (R) = 0.821 atm.L/Kmol

Volume (V) =?

PV = nRT

1 × V = 4 ×0.0821 × 773

V = 253.85 L

Thus, the volume of water vapor obtained is 253.85 L

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Read 2 more answers

Consider the following unbalanced equation. What is the standard free energy for the reaction of 7. 2 moles of al2o3(s) at 298k?

Lorico [155]

for the following unbalanced equation.5800 kj is the standard free energy for the reaction of 7. 2 moles of al2o3(s) at 298k

First, let's balance the equation. Both sides must have the same amount of each element, so: Al₂O(s) + 3CO(g) 2Al(s) + 3CO2(g)

The free energy can be calculated by: AG = AH-TAS Where AH is the enthalpy of the reaction, and AS is the entropy of the reaction.

Al2O3(s): Hf=-1676.0 kJ/mol; S = 50.92 J/mol.K Al(s): Hf = 0.00; S° = 28.3 J/mol.K

CO(g): Hf=-110.5 kJ/mol; S = 197.6 J/mol.K

CO2(g): Hf=-393.5 kJ/mol; S = 213.6 J/mol.K

AH = Σn*Hf products - En*Hf reactants (n is the coefficient of the compound).

AH = (3*(-393.5) + 2*0) - (3*(-110.5) + (-1676)) = 827KJ

AS = {n*S* products - Σn*S° reactants

AS = (3*213.6 +2*28.3) - (3*197.6 + 50.92) = 53.68J/K = 0.05368 kJ/K

AG 827-298*0.05368 AG = 811 KJ

Which is the free energy for 1 mol of Al2O3

1 mol of Al2O3=811 KJ X 7.2 moles of Al2O3

By a simple direct three rule: standard free energy is x = 5839.2 kJ = 5800 kJ

Learn more about standard free energy here:

brainly.com/question/10012881

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1 year ago

Propane burns in air to form water vapor and another gas. What is the volume of the water vapor at 500°C and 1 atm?​

Propane burns in air to form water vapor and another gas. What is the volume of the water vapor at 500°C and 1 atm?