11. A piece of unknown solid substance weighs 437.2 g, and requires 8460 J to increase its temperature from 19.3 °C to 68.9 °C. (a) What is the specific heat of the substance?

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: (a) If 10.6 moles of water at 35°C absorbs 12.30 kJ, what is the final temperature of the water? The…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: if a system does 25 J of work on its surroundings and is cooled by 35 J, what is the net energy…

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Q: A metal is thought to be gold or titanium. When 20 g of the metal absorbs 30.8 cal, its temperature…

A: The specific heat capacity of a substance refers to the heat capacity of a substance refers to the…

Q: What is the specific heat of tin if a 55.0-g sample absorbs 982 J of heat to raise its temperature…

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Q: What is the change of internal energy in J of a system that releases 675 J of heat and has 875 J of…

A: According to first law of thermodynamics, we have : dU = q + w  ----(1) Where dU is change in…

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 65.0 kJ of work on…

A: Given that, System absorb heat, so q is positive, so,  q=+155.0 KJ also given, system does work, so…

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: If a system has 62.0 J of heat added to it, and the system does 25.0 J of work on its surroundings,…

A: Dear student,  Since it is not mentioned that which question you want to ask out of these two…

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: What is the change in internal energy for a system if the system absorbs 537 kJ of heat and does…

A: We have given that  Heat absorbed by system =q= 537KJ  Work done by system is always negative   W =…

Q: A piece of unknown solid substance weighs 437.2 g, and requires 8460 J to increase its temperature…

A: In this question, we want to determine the specific heat of the unknown substance.  You can see…

Q: 3. When a 58.8 g piece of hot alloy is placed in 125 g of cold water (C = 4.184 J/g-°C) in a…

A: Given data,  Mass of hot alloy(ma) = 58.8 g  Mass of cold water (mw) = 125 g  The temperature change…

Q: How much heat must be applied to a 40.2g sample of gold (s=0.129 J(g∙℃)) in order to raise its…

A: Given information:Mass of gold = 40.2 gInitial temperature = 28.2 ˚CFinal temperature = 351.5…

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 specific heat of a 83.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: The amount of heat absorbed or released is related to specific heat capacity as,…

Q: A sample of iron absorbs 62.3 J of heat, upon which the temperature of the sample increases from…

A: The amount of heat required is related to specific heat capacity as,…

Q: what is the amount of internal energy (in joules) for a system that has performed 1478.714 J of work…

A: The internal energy of a system can be changed in two ways: (i) By allowing heat to flow into the…

Q: If silver has a specific heat of 0.24 J/g x C, and it takes 1250 J of energy to raise the…

A:

Q: What is the specific heat capacity of an unknown metal if 75.00 g of the metal absorbs 418.6J of…

A: Calculation of heat capacity: The amount of heat required to increase the temperature of one gram of…

Q: A system receives 825 J of heat and delivers 825 J of work to its surroundings. What is the change…

A: Given:Heat received by system, dQ = 825Jwork done by system, dW=825Jchange in internal energy, dU…

Q: 4. What is the specific heat of iron, if it requires 1050 J of heat energy to raise the temperature…

A: Heat required = 1050 J Initial temperature = 10.0°C Final temperature= 20.4°C Change in temperature…

Q: What is the change in internal energy in joules for a system that releases 154 J of heat and does…

A: Since the relationship between work, internal energy change and heat released is given by  ΔE=…

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

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Q: A piece of a metal of a mass 4.68g absorbs 256J of heat when its temperature increases by 182C. What…

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Q: The energy absorbed by a certain system is -130 kj . If the system does 90kj of work on the…

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Q: What is the specific heat of a 75.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given : Mass of metal = 75.01 g Change in temperature of metal = 45.2 °C And the total heat absorbed…

Q: 3. 842 J of works was done for a gas to be compressed. At the same time, it releases 451 J of heat.…

A: Given -> Work = +842 J ( work done on the system) Q = -451 J ( heat released)

Q: What is the specific heat of a 72.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given data is  mass of sample = 72.01 g Temperature = 45.2 oC Heat absorbed = 1870 J Formula used…

Q: 1. In an experiment to determine the Specific Heat of Nickel, a 66.0 g sample of Nickel metal is…

A: Answer :-  The specific heat of Nickel determined by the experiment = 0.544 J/g.°C…

Q: What is the specific heat of lead if it takes 98.0 J to raise the temperature of a 75.4 g block by…

A: Given :- heat absorb = 98.0 J  mass of lead block = 75.4 g  change in temperature of block = 10.5°C…

Q: What is the AE of a system if 184 kJ of work is done on the system and it loses 267 kJ of heat?

A: We use the first law of thermodynamic for calculating the change in internal energy. This low state…

Q: Calculate the temperature change when 7.52J of heat is released in a calorimeter having a heat…

A: Given,  Heat released = q = 7.52 J  Heat capacity of calorimeter = C = 470 J/°C  Temperature change…

Q: What is the specific heat (c) of a metal if the temperature of a 15.5g sample increases from 29.5℃…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: What is the specific heat of a material when 55.2 g of it change temperature by 35.8 °C when it…

A: We have given that  Q= 4526J  Temperature change =∆T= 35.8°C  Mass of material = 55.2g  Specific…

Q: When 745 J of energy in the form of heat is transferred from the environment to a gas, the expansion…

A: According to first law of thermodynamics dU = dQ + dW Where dU is change in internal energy, dQ is…

Q: How much heat (kJ) is released by a 200-gram piece of silver as it cools from 1023°C to 300°C?

A: Given :-  Mass of piece of silver (m) = 200 g  Initial temperature (T1) = 1023°C  Final temperature…

Q: A 25.0 g mold made of an alloy absorbed 250 J of heat as its temperature changed from 25 °C to 78…

A: Given information is as follows; Mass (m) of gold = 25.0 g      Heat absorbed (q) = + 250 J Initial…

Q: What is the resulting temperature in celsius when 35 g of water at 75 degrees celsius is mixed with…

A: Given, 35 g of water at 75 degrees celsius is mixed with 15 g of waterat 15 degrees celsius.The…

Q: A new substance evolves (-1.64) kJ of heat when 17.15 g it cools from 106.2oC to 23.8oC. What is the…

A: Given :-  Heat (q) = -1.64 kJ  mass of substance = 17.15 g  Initial temperature = 106.2 °C  Final…

Q: The ΔE of a system that absorbs 12.4 J of heat and does 4.2 J of work on the surroundings is…

A: Recall the following expression from first law of thermodynamics            ∆E=q + wHere,change in…

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 35.0 kJ of work on…

A: Since we know that according to the first law of Thermodynamics ∆E = q + w  Where , ∆E = change in…

Q: specific heat of gold is 0.129J/g C. what is molar heat capacity of gold?

A: The Question is about to calculate the Molar Heat Capacity of Gold -

Q: What is the specific heat of a 91.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given temperature of the piece of metal (T) = 45.2°C  Given mass of the piece of the metal (m) =…

Q: A 237 g sample of molybdenum metal is heated to 100.1 °C and then dropped into an insulated cup…

A: mass of Molybdenum = MMo = 237 gInitial Temperature of Molybdenum =TMo = 100.1°Cmass of water = Mw =…

Q: A piece of metal with a specific heat of 1.011 J/gºC is heated to 123.1ºC and then placed in 111.031…

A: Use calorimetry principle to get answer. Heat flow from high temperature to low temperature. Metal…

Q: of

A: According to 1st law of thermodynamics  Change in internal energy= Q-W Q= heat added to the system…

Q: 2. A solid substance has a mass of 250 grams. It is cooled by 25.00°C and loses 4.937 kJ of heat.…

A:

Q: A block of Iron weighing 207 g absorbs 1.50 kJ of heat. What is the change in the temperature of the…

A:

Q: If a system does 62.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: Ca (s)  + 1/2 O2  (g)  -------> CaO (s)    ΔH°=-635kJ/mol to get desired equation we have to…