Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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![Select whether there is no work done by the system, work done by the system or work done by the
surroundings for each system described below:
A. H20 (1)
–→ H,O (g) AH = 44.0 kJ/mol ( Select ]
B. 2 NO (g) + O, (g) → 2 NO,(g) AH = -114.1 kJ/mol
[ Select ]
C. CI (g) + O3 (g) → CIO(g) + O2(g) AH = -163 kJ/mol
[ Select ]
D. CaCO3 (s) → CaO (s) + CO,(g) AH = 110.1 kJ/mol [Select ]
E. 4 NH3(g) + 5 O2{g) → 4 NO (g) + 6 H2O(1) AH = -906 kJ/mol
[ Select ]
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Transcribed Image Text:Select whether there is no work done by the system, work done by the system or work done by the
surroundings for each system described below:
A. H20 (1)
–→ H,O (g) AH = 44.0 kJ/mol ( Select ]
B. 2 NO (g) + O, (g) → 2 NO,(g) AH = -114.1 kJ/mol
[ Select ]
C. CI (g) + O3 (g) → CIO(g) + O2(g) AH = -163 kJ/mol
[ Select ]
D. CaCO3 (s) → CaO (s) + CO,(g) AH = 110.1 kJ/mol [Select ]
E. 4 NH3(g) + 5 O2{g) → 4 NO (g) + 6 H2O(1) AH = -906 kJ/mol
[ Select ]
<>
>
>
>
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Introduction
"Since there are multiple sub-parts in this question and it is not mentioned that which one has to be solved so I am solving only the first three sub-parts. Please repost the other sub-parts if you need answers for them too."
Work is the energy that is transmitted to or from an object by applying force around a displacement. It is also represented in its simplest form as a product of force and displacement. Energy is a mathematical property that must be transmitted to an object in order to perform the task on or heat the object. Energy is a conserved quantity; the law on energy conservation states that energy may be transformed into a shape, but that it cannot be produced or killed. The SI energy unit is joules (J), named in honor of James Prescott Joule.
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- 1. When gasoline burns in an automobile engine, the heat released (325 J) causes the products CO2 and H20 to expand, which pushes the pistons outward. Excess heat is removed by the car's cooling system. If the work associated with the expanding gases is equal to 451 J, how much is the change in internal energy of the gases? How much is the change in internal energy of the piston?arrow_forwardA piece of lead (mass = 2.85 g) at 10.3 C is placed in a Styrofoam coffee cup containing 7.55 mL of water at 52.3 C. Assuming that no heat is lost to the cup or the surroundings, what will the final temperature should be? The specific heat capacity of lead = 0.128 J/g°C and water = 4.18 J/g°C. density of water = 1.00 g/mLarrow_forwardCalculate the energy required to heat 157.0 g of graphite from 4.3 °C to 13.8 °C. Assume the specific heat capacity of - 1 - 1 graphite under these conditions is 0.710 J•g K. Round your answer to 2 significant digits. alo Ar Dloarrow_forward
- Consider the following cyclic process carried out in two steps on a gas. Step 1: Step 2: 48 J of heat is added to the gas, and 12 J of expansion work is performed. 66 J of heat is removed from the gas as the gas is compressed back to the initial state. Calculate the work for the gas compression in Step 2. Jarrow_forwardIn a gas expansion, 74 J of heat is absorbed from the surroundings, and the energy of the system decreases by 116 J. Calculate the work done.arrow_forwardA piece of titanium metal with a mass of 21.6 g is heated in boiling water to 99.5 °C and then dropped into a coffee-cup calorimeter containing 75.0 g of water at 21.8 °C. When thermal equilibrium is reached, the final temperature is 24.5 °C. Calculate the specific heat capacity of titanium. (The specific heat capacity of liquid water is 4.184 J/g. K.) Specific heat capacity= J/g. Karrow_forward
- A gaseous system has 71 J of work done on it by surroundings and increases its internal energy by 69 J. Calculate the amount of heat associated with this scenario. 140 J of heat is released by the system. 2 J of heat is released by the system. The heat of the system remains constant. 2 J of heat is absorbed by the system. 140 J of heat is absorbed by the system.arrow_forwardAs a system increases in volume, it absorbs 55.0 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.540 atm. The final volume of the system is 58.2 L. What was the initial volume of the system if the internal energy of the system decreased by 103.4 J?arrow_forwardA 19.3 g sample of beryllium at 96.7°C is placed into 46.2 mL of water at 20.2°C in an insulated container. The temperature of the water at thermal equilibrium is 32.0°C. What is the specific heat of beryllium? Assume a density of 1.00 g/mL for water. (See this table.) J/(g·°C)arrow_forward
- A balloon filled with gas is compressed under an external pressure of 3.0 atm from 4.0 L to 1.0 L. How much work (in Joules) is transferred during the compression? 1 Latm= 101.325Jarrow_forwardIn a certain process, 400 J of heat is added to a system and the system simultaneously does 100 J of work. The change in internal energy of the system is 500 J 400 J 300 J -100 J -300 Jarrow_forward
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