Question: 1. Enter your answer in the provided box. Consider the reaction 2H 2 O( g ) 2H 2 ( g ) + O 2 (

1. Enter your answer in the provided box. Consider the reaction

2H2O(g) 2H2(g) + O2(g)H = 483.6 kJ / mol

If 2.0 moles of H2O(g) are converted to H2(g) and O2(g) against a pressure of 1.0 atm at 135C, what is U for this reaction? Answer:______________ kJ

2.

Be sure to answer all parts. A gas expands from 283 mL to 947 mL at a constant temperature. Calculate the work done (in joules) by the gas if it expands (a) against a vacuum. w = ______________J (b) against a constant pressure of 4.00 atm. w = ______________J

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