Consider the reaction


2H2O(g) → 2H2(g) + O2(g) ΔH = +483.60 kJ/mol

at a certain temperature. If the increase in volume is 42.7 L against an external pressure of 1.00 atm, calculate ΔU for this reaction. (The conversion factor is 1 L · atm = 101.3 J.)

2 answers

du = dq + dw

du = +483.6 KJ/Mol + 42.7 L * 1*10^5
The above by Cameron is correct EXCEPT the dw portion.
In L*atm that is 42.7 L x 1 atm. Convert that to J by 42.7 x 1 x 101.3 = dW.
Similar Questions
  1. At 25°C the following heats of reaction are known:2C2H2 + 5O2 ---> 4CO2 + 2H2O; ΔH = -2600 kJ C + O2 ---> CO2 ; ΔH = -394 kJ
    1. answers icon 1 answer
  2. Consider the reaction2H2O(g) --> 2H2(g) + O2(g) deltaH = +483.6 kJ/mol at a certain temperature. If the increase in volume is
    1. answers icon 1 answer
    1. answers icon 1 answer
    1. answers icon 1 answer
more similar questions