Question 26 3.7 pts Calculate AU of a gas for a process in which the gas...
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Calculate AE of a gas for a process in which the gas absorbs 25 J of heat and does 7 J of work by expanding +1s0 J O -32 J O -32 J +18 J -18 J
Calculate A U of a gas for a process in which the gas absorbs 45 J of heat and does 11 J of work by expanding. a. -56J b.56J C-34) d.OJ e. 34 )
Calculate AU of a gas for a process in which the gas absorbs 29 J of heat and does 31 J of work by expanding A. 21 B. 60) C. -60J D. -2J Which of the following statements is not true for an exothermic reaction? A. Heat passes from the reaction system to the surroundings. B. The products have a higher heat content than the reactants. C. The temperature of the reaction system increases D. The enthalpy change for the...
Calculate the change in the internal energy of the system for a process in which the system absorbs 140 J of heat from the surroundings and does 85 J of work on the surroundings.
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QUESTION 20 A system absorbs 73 J of heat. And the same time the system does 9 J of work on the surroundings. What is the AU? 0 -9) 0 -46) O 35 ) O 11) O 64 ) 0 -15 ) QUESTION 21 A system absorbs 88 J of heat. And the same time the system does 26 J of work on the surroundings. What is the AU? O 62] 0 -46) O 35 ) O...
A gas is compressed and during this process the surroundings do 43.3 J of work on the gas. At the same time, the gas absorbs 281 J of heat from the surroundings. What is the change in the internal energy of the gas? Submit Answer 1 question attempt remaining
Question 17 3 pts Using standard molar enthalpies of formation given in the table below, calculate AH/xnto one decimal place, for the combustion of ammonia: AHrxn° = E nAH (products) - E mAHt"reactants) 4 NH3(g) + 7 O2(g) → 4NO2(g) + 6H2O(1) molecule AHF (kJ/mol-rxn) NH3(g) -45.9 NO2(g) +33.1 H2O(1) -285.8 H2O(9) -241.8 - 1663.6 kJ/mol-rxn +30.24 kJ/mol-rxn -1398.8 kJ/mol-rxn -298.6 kJ/mol-rxn -206.9 kJ/mol-rxn Question 11 3 pts A gas absorbs 45 kJ of heat and does 29 kJ of...
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Set 2: (50 pts) Consider 1.0 mole of a monotomic ideal gas (system) which is initially equilibrated at a temperature of 500 K in a container with a volume of 1 m, and then undergoes a reversible isothermal expansion to a volume of 2 m'. 1. (10 pts) What is the internal energy (U) of the gas (in Junits)? 2. (10 pts) What is the internal energy change (AU) of the gas (in J units)? 3....
A gas is compressed and during this process the surroundings do 61.7 J of work on the gas. At the same time, the gas absorbs 219 J of heat from the surroundings. What is the change in the internal energy of the gas?
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3 is compressed adiabatically in a piston-cylinder device from T1-300 K, pi = 1 bar to p2 = 10 bar at a constant external pressure Pext"- P2 -10 bar. Calculate the final temperature, T2, and W, Q. AU, AH for this process. 2. (20 pts.) Repeat problem 1 for an adiabatic and reversible compression. 3. (20 pts.) A rigid, insulated tank is divided into two...