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Question 13 of 30 The following combustion reaction (balanced) is run in a 22.4 L flask and the pressure in the flask is measured at 298 K before (P1) and after (P2) the reaction goes to completion. Initially, there are 0.166 moles of C3H8(g) and 0.833 moles of O2(g). C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g) What is the pressure, P1, in the flask before the reaction starts and the pressure in the flask after the reaction has gone to completion, P2? (hint: the molar volume of an ideal gas at STP = 22.4 L) A) P1 = 1 atm, P2 = 1.17 atm B) P1 = P2 C) P1 = 2 atm and P2 = 2.34 D) P1 = 0.86 atm and P2 = 1 atm

          Question 13 of 30

The following combustion reaction (balanced) is run in a 22.4 L flask and the pressure in the flask is measured at 298 K before (P1) and after (P2) the reaction goes to completion. Initially, there are 0.166 moles of C3H8(g) and 0.833 moles of O2(g).

C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g)

What is the pressure, P1, in the flask before the reaction starts and the pressure in the flask after the reaction has gone to completion, P2? (hint: the molar volume of an ideal gas at STP = 22.4 L)

A) P1 = 1 atm, P2 = 1.17 atm
B) P1 = P2
C) P1 = 2 atm and P2 = 2.34
D) P1 = 0.86 atm and P2 = 1 atm

Question 13 of 30

The following combustion reaction (balanced) is run in a 22.4 L flask and the pressure in the flask is measured at 298 K before (P1) and after (P2) the reaction goes to completion. Initially, there are 0.166 moles of C3H8(g) and 0.833 moles of O2(g).

C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g)

What is the pressure, P1, in the flask before the reaction starts and the pressure in the flask after the reaction has gone to completion, P2? (hint: the molar volume of an ideal gas at STP = 22.4 L)

A) P1 = 1 atm, P2 = 1.17 atm
B) P1 = P2
C) P1 = 2 atm and P2 = 2.34
D) P1 = 0.86 atm and P2 = 1 atm

Added by Juan Francisco F.

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