Calculate the energy required to heat 123.0 g of ethanol from −0.2°C to 21.0°C. Assume the specific heat capacity of ethanol under these conditions is 2.44J·g^−1K^−1. Round your answer to 3 significant digits.

Q: A 216.9 g sample of sodium absorbs 800.2 joules of heat. The specific heat capacity of sodium is…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 182.0 mg sample…

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Q: If you know that 18.5 grams of a particular mineral, with heat quantity of 1170 J, its temperature…

A: Hii There! since there are multiple question posted. we are answering first question. if you need…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.24 kg sample…

A: Given: Mass of sample : 0.24 kg Initial temperature = 33.8oC Final temperature = 43.9oC Heat needed…

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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: A 25.0-mL sample of benzene at 20.4 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 576.0 mg sample…

A: Given that, for a 576.0 mg of pure substance, 10.1 J of heat is required to raise the temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 569.0g sample…

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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: When determining the heat capacity of the unknown metal we assumed the heat capacity of water has a…

A: When determining the heat capacity of the unknown metal we assumed the heat capacity of the water…

Q: 1. Calculate the change in the internal energy of the system for a process in which the system…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.54 kg sample…

A: q = amount of heat required to raise the temperature = 19.6kJ = 19600J Initial temperature = Ti =…

Q: If 1495 J of heat is needed to raise the temperature of a 333 g sample of a metal from 55.0°C to…

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Q: What is the change in internal energy for a system which loses 422 J of heat, and on which 227 J of…

A: According to first law of thermodynamics the change in internal energy is expressed as shown below:

Q: What is the change in internal energy of a system that has 275 kcal of work done to it and it…

A: Internal energy is a function of the volume and the temperature. In a closed system of constant…

Q: A system gains 617 kJ of heat, resulting in a change in internal energy of the system equal to +161…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.03kg sample…

A: Mass of C6H4F2 = 1.03 kg = 1030 g Molecular weight of C6H4F2 = 114.09 g/mol Number of moles of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.36 kg sample…

A: Given: Mass of sampleC4H6O2=1.36 kg T1=48.6οC T2=61.7οC Q=2.79×104 J To find: Molar heat capacity…

Q: In a calibration of a calorimeter, 50.3 g of water at 60.5 degrees celsius is added to 48.7 g of…

A: Given : mass of cold water = 48.7 g Mass of hot water = 50.3 g Initial temperature of hot water =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.69 kg sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 415.0 mg sample…

A: The amount of heat absorbed or released is equal to the product of mass of substance with specific…

Q: A system gains 612 kJ of heat, resulting in a change in internal energy of the system equal to +181…

A: Given,Heat gain (Q)=612kJChange in internal energy(∆U)=181kJ

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 693.0 g sample…

A: given, the mass of the sample = 693.0 g the temperature rises from initial temperature, T1 = 17.1 oC…

Q: A system releases 466 kJ of heat to its surroundings. At the same time, 202 kJ of work is done on…

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Q: The change in the internal energy of a system that absorbs 2,500 J of heat and that does 7,655 J of…

A: Given-> Heat absorbed = 2500 joule Work done on surrounding = 7655 joule

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.45 kg sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a  338.0mg…

A: The mass of the pure substance in kilogram can be written as 338.0 × 10-6 kg. The specific heat…

Q: A 1.8 L nitrogen balloon (cs = 1.04 J/g*°C) is cooled from 150°C to 25°C. If it compresses to 1.3 L…

A: Calculation of heat: where q is the heat, m is the mass of the sample, c is the specific heat of…

Q: A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change in…

A: According to first law of thermodynamics, ∆U = ∆Q - ∆W

Q: 3. A sample of aluminum with a mass of 53.4 g is initially at 156 ° C. What is the temperature of…

A: "Since you have asked multiple question, I will solve the first question for you. If you want any…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 682.0 mg sample…

A: • The values provided in the question are:-       i) Mass of a substance, m = 682.0 mg = 0.6820 g {…

Q: 4. What speed must a 250.0 kg motorcycle be travelling at to have a kinetic energy of 2.8 x 10* J?

A: We nees to find the speed of motorcycle if, kinetic energy = 2.8×104 J and, mass = 250.0 kg

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.04 kg sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.19 kg sample…

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Q: 1. When 145.6 J of heat are added to 13.0 g of mercury in a thermometer, the temperature increases…

A: Here we have to determine specific heat of  mercury if 13 g of Hg absorbed 145.6 J heat energy so…

Q: In a calibration of a calorimeter, 50.3 g of water at 60.5 degrees C is added to 48.7g of water at…

A: GivenMass of 1st lot of water = 50.3gTemperature (T1) = 60.5°CMass of 2nd lot of water =…

Q: What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to…

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Q: O THERMOCHEMISTRY Calculating specific heat capacity 0/5 LANZCE V A chemist carefully measures the…

A: Given, Note: 1000 mg = 1 g Mass of the sample (m) = 162.0 mg = 0.162 g Initial temperature (Ti) =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 412.0 mg sample…

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Q: If 1495 J of heat is needed to raise the temperature of a 327 g sample of a metal from 55.0°C to…

A: The weight of metal is 327 g.The given temperature values are 55.0 ˚C and 66.0 ˚C. The value of q is…

Q: the molar heat capacity ofC4H8O?

A: Given that amount of heat, temperature difference, mass of the sample. I have provide solution in…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.76 kg sample…

A: To find molar heat capacity.

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 chemist carefully measures the amount of heat needed to raise the temperature of a 286.0 g sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.43 kg sample…

A: Given, mass of sample C4H11N, m = 0.43 kg Moles  0f C4H11N = 0.43 ×103 g73 g/mol change in…

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

A: Wt. of lead = MPb = 19.61 gInitial temperature of lead = TPb =97.01°CMass of water = M = 82.14…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 833.0 mg sample…

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Q: A 15.0-mL sample of benzene at 21.3 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

A: Given, density of benzene = 0.80 g/mL Volume of the solution = 15.0 mL  Mass of benzene = Density x…