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Find the temperature at which Kp = 4.00 for the reaction N2O4(g) <==> 2NO2(g). [Given: at 25°C, for NO2(g), ?H°f = 33.85 kJ/mol, S° = 240.46 J/mol·K; for N2O4(g), ?H°f = 9.66 kJ/mol, S° = 304.3 J/mol·K; assume that ?H° and ?S° are independent of temperature.]
2.0 L of gas A at 1.0 atm and 1.0 L of gas b at 1.0 atm are combined in a 3 L flask. The flask is sealed and over time they react to completely to give gas C according to 2A(g) + B(g)= C(g)
Which of these substances would have the strongest cohesive forces in combination with the greatest molecular mobility?
Determine the limiting reactant -reaction mixture initially contains no products
Using a reasonable range of temperatures, determine the apparent (or global) activation energy of NO formation during a combustion process
calculate the entropy change when argon at 25 degc and 1.00 bar in a container of volume 0.500 dm3 is allowed to expand
The first-order reaction 2N2O(g) --> 2N2(g) + O2(g), what is the concentration of N20 after 3 half-lives if 0.25 mol of N2O is initially placed into a 1.00-L reaction vessel
assuming the unknown acid has one acidic proton per molecule, what is the molecular formula of the unknown acid?
Calculate the weight of potassium chlorate required to prepare 380 mL of wet oxygen collected over water at 20 Celcius and 750 mm of Hg.
High-purity benzoic acid (C6H5COOH; change H (rxn) for combustion = -3227 kj/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter
Acetylene,C2H2 , can be converted to ethane,C2H6 , by a process known as hydrogenation. The reaction is C2H2 + 2H2 --> C2H6 Given the following data, what is the value of K(p) for this reaction?
the compound x2y has a molar mass of 110.27 gmol. the ratio of xy by mass in the compound is 2.44 1. what is the
A 5.5 g sample of metal at 100.0 degrees celsius is placed in a calorimeter with 20.0 g of water at 15.0 degree celsius. If the temperature of the water rises to 21.0 degrees celsius, what is the specific heat of the metal?
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