2) A reaction occurring in a calorimeter absorbs 850.0 J of energy. The initial temperature of 200.0 g of water is 24.5 °C. Do you expect the temperature of the water to increase or decrease? Explain? Calculate the final temperature of the water.

Q: 4. An amount of heat equal to 2500 J is added to a system, and 1800 J of work is done on the system.…

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Q: If 87 J of heat are added to a balloon, causing it to expand from 1.0 L to 1.4 L under 0.97 atm of…

A: Given: Required heat = 87 J Initial volume = 1.0 L Final volume = 1.4 L External pressure = 0.97…

Q: The reaction of hydrogen and nitrogen gases produces 5.00 g of ammonia and releases 3250 cal of…

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Q: When methanol, CH,OH, is burned in the presence of oxygen gas, 0,, a large amount of heat energy is…

A:

Q: If a system has 48.5 J of heat added to it, and the system does 75.5 J of work on its surroundings,…

A: Given q = 48.5 J ( positive as heqat is added )w = -75.5 J ( as work is done by system )

Q: How much heat is required to raise the temperature of a sample of copper from 0°C to 55° C, if the…

A: Given that : Mass (m) = 67 g Change in temperature ∆T = 55°C - 0°C = 55°C Specific heat of copper…

Q: a. If 1410 J of heat are applied to a 100g piece of metal pipe and the temperature of the pipe rises…

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Q: When a 0.740-g sample of trinitrotoluene (TNT), CH,N,0, Is burned in a bomb calorimeter, the…

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Q: A system receives 225 J of heat from the surroundings and delivers 428 J of work. What is the change…

A: The first law of thermodynamics states that "energy can neither be created nor destroyed , but can…

Q: What is the kinetic energy in joules of a 1030-kg automobile traveling at 86 km/h?  What is the…

A: Kinetic energy of the moving particle depend on its mass and velocity .

Q: A 1533 kg car is traveling down the road at 99.0 km/h. While traveling at this rate of speed, what…

A: Here we use the formula of kinetic energy K.E = 1/2 m* V^2 Where m = mass of car = 1533 kg V =…

Q: If a system has 49.5 J of heat added to it, and the system does 75.5 J of work on its surroundings,…

A: According to the first law of thermodynamics, the relationship between work, heat and change in…

Q: If 400 J of heat is given to a system and the system does 200J of work, what is the change in…

A: Answer:- This question is answered by using the simple concept of calculation of change in energy…

Q: 2. A system performs 3.63 kJ of work and gives off 8.98 kJ of heat. What is the change in energy of…

A: To solve this problem we will use First Law of Thermodynamics  .  According to this law  ∆E = q + w…

Q: A gas does 135 J of work while expanding and, at the same time, absorbs 156 J of heat. What is its…

A: Given :-  heat absorbed by system = 156 J  work done by gas = 135 J To calculate :- ∆U(in J)

Q: 3) The addition of CO2 to a solution containing calcium ions can lead to the formation of insoluble…

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Q: The specific heat of an unknown metal is calculated to be 3.74J/g*C. What is the mass of the sample…

A: Answer is explained below.

Q: 13.0 and 54.0 °C, respectively, were mixed inside a cup calorimeter. If the temperature of water…

A: The heat capacity of the calorimeter is 58.1J/oC

Q: Consider the following reaction: 2C6H6() + 15 O2(g)- 12 CO2(g) + 6 H20() AH = -5.869 x 103 kJ An…

A: Each reaction takes place account to their stoichiometric radio and account to those things the heat…

Q: The specific heat of water is 4.18 J (g x Celcius). Calculate the molar heat capacity of water.

A: Specific heat of water is 4.18 J / g 0C. That means amounts of heat required by 1 mol of water to…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

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Q: If a system absorbs 155 kJ of heat from its surroundings and the system does 95 kJ of work on its…

A:

Q: When methanol, CH,OH, is burned in the presence of oxygen gas, O,, a large amount of heat energy is…

A: Enthalpy of reaction = - 764 kJ/mol Energy required = 729 kJ We need to find mass of methanol to be…

Q: A metal object with a mass of 19 g is heated to 96°C and is transferred to a calorimeter containing…

A: Given data: The mass of metal = 19 g. The temperature of the metal =  96°C. The mass of water = 75…

Q: 23.  If a reaction produces 1.506 kJ of heat, which is trapped in 30.0 g of water initially at 26.5…

A: Calorimeters play a major role in estimating reaction's heat with the known specific heat of…

Q: 3. A gas does 135 J of work while expanding, and at the same time, it absorbs 156 J of heat. What is…

A: Given: (3) work done by gas=135J Absorbed heat=156J To find: change in internal energy of the…

Q: 8. If you add a metal piece with a temperature of 120 °C and a mass of 1.23 g to 100 g of 30 °C…

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Q: If a system does 73.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

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Q: What are the internal energy changes, ∆E, if a system; (a.) absorbs 67 J of heat and does 67 J…

A: Answer to all the parts are given below.

Q: If the water in a coffee cup calorimeter absorbed 300 J of energy (q = +300 J) during a reaction…

A: Energy absorbed by water in coffee cup calorimeter = 300 J qwater = + 300 J

Q: 1)What is the specific heat if 24.8 g of a metal absorbs 275 J of energy and the temperature rises…

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Q: If 171.4 grams of water must be heated from 8.00°C to 85.0 °C to make a cup of tea, how much heat…

A: The solution is as follows :

Q: A system receives 525 J of heat from its surroundings and delivers 465 J of work to its…

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Q: Under what conditions does the enthalpy change equal the heat of a process

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Q: NH3(g) + H2O(g) 02(g) --> _- NO(g) + -- Based on the enthalpies of formation, how much energy, in…

A: Given unbalanced equation is :  NH3 (g) + O2 (g) ----------> NO (g) + H2O (g)  Given mass of NH3…

Q: How much heat is produced when 6.26 g of zinc metal reacts with oxygen gas under standard…

A: Given, 2Zn(s) + O2(g) → 2ZnO(s) Standard enthalpy of formation of species are; Species…

Q: When methanol, CH3OH, is burned in the presence of oxygen gas, O2, a large amount of heat energy is…

A:

Q: A gas expands and does work on the surroundings equal to 2.17 L atm. At the same time, it releases…

A: First law of thermodynamics It states that the internal energy of a system is equal to the heat…

Q: Which statement is true of the internal energy of the system and its surroundings following a…

A: The first law of thermodynamics states that the energy of the universe is constant i.e. the sum of…

Q: A 29.00 g sample of metal alloy is heated to 92.6 °C; then placed in 55.23 g of water in an…

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Q: Assume that the kinectic energy of a 1400-kg car moving at 115 km/h could be converted entirely into…

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Q: .A sample of solid sodium was reacted with chlorine gas to give 4.36 g of pure NaCl.  The energy…

A: Heat of formation of a compound is the heat change when one mole of that particular compound formed…

Q: What is the energy change of a system as it does 12 J of work and absorbed 27 J of heat?

A: To calculate the energy change of the system if the work done by the system is 12 J and it absorbs…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A:

Q: A gas expands and does work on the surroundings equal to 4.92 L atm. At the same time, it releases…

A: Given: Work done (W) = 4.92 L atm Heat released by the system according to sign convention (q) = -…

Q: If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the…

A:

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 95.0 kJ of work on…

A:

Q: Consider the reaction: 2C4H10g) + 1302(g) 8CO28) + 10H20(), AH = -5756 kJ When a 0.571 mol of C4H10…

A:

Q: How much energy does it take to heat 15.6 grams of aluminum metal from 25°C to 150.°C? The specific…

A: Mass of Aluminum = 15.6 grams Initial Temperature (Ti) = 25°C Final Temperature (Tf) = 150°C…

Q: Consider the combustion of propane: C,H, (9) + 50 (9) 3CO,(9) + 4H,O(1) AH=-2221 kJ A balloon is…

A: The given data contains, Heat required = 1.4×108 J Assume y grams of propane is being combusted.…