How much energy must be removed from a 125 g sample of benzene (molar mass = 78.11 g/mol) at 425.0 K to liquify the sample and lower the temperature to 335.0 K?  The following physical data may be useful. ΔHvap = 33.9 kJ/mol ΔHfus = 9.8 kJ/mol Cliq = 1.73 J/g°C Cgas = 1.06 J/g°C Csol = 1.51 J/g°C Melting pt = 279.0 K Boiling pt = 353.0 K

Q: 28. Water is heated from 25°C to 100°C. By how much does its chemical potential change. assume the…

A: Given, Initial Temperature = 25oC = (273 +25)K = 298K Final Temperature - 100oC = (273 + 100)K =…

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Q: Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed…

A: Given: The number of moles of ethanol, C2H5OH, (n) = 0.119 moles. The molar mass of ethanol, (M) =…

Q: The boiling point of benzene is 80°C. Which pair of samples will have the same average kinetic…

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Q: A 0.551 g sample of steam at 106.1 °C is condensed into a container with 4.66 g of water at 15.2 °C.…

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Q: Determine the heat of dissolution, in kJ/mol, of 0.250 mol C2 having a specific heat of 0.84 J/g °C.…

A: Heat absorbed = =mass ×temperature change × Specific heat capacity

Q: According to the scheme below, How much energy is required to evaporate 54.06 g water (Molecular…

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Q: A 25.0 g sample of benzene at 19.9 °C was cooled to its melting point (5.5 °C). How much heat was…

A: Introduction: Specific heat capacity:                                It is the amount of heat energy…

Q: 9.91 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70 °C.…

A: Please find your solution below : Enthalpy of dissolution is defined as the change in enthalpy…

Q: In a constant-pressure calorimeter, 65.0 mL of 0.800 M H,SO, was added to 65.0 ml. of 0.500 M NaOH.…

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Q: A 36.0 g sample of liquid water at 100.0oC is heated to 145.0 oC.   How much heat does the water…

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Q: 125 g of dry ice (solid CO2) is dropped into a beaker containing 500g of water at 66°C. The dry ice…

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Q: Carbon disulfide, CS2, is a colorless, toxic, highly volatile, and flammable liquid. What is the…

A: Given, CS2(l) ➝ CS2(g) ; ∆H° = ? ∆Hf°[CS2(l)] = 89.7 kJ/mol ∆Hf°[CS2(g)] = 116.9 kJ/mol Heat of…

Q: H2O has a ΔHvap = 40.8 kJ/mol and a ΔHfus = 6.02 kJ/mol. The specific heat capacity of ice is 2.11…

A: The amount of heat absorbed to elevate the temperature of ice (Q1) at -42oC to 0oC is equal to…

Q: How much energy is needed to change the temperature of 39 g of water from 10.0 °C to 95.0 °C?

A: Since water remains in liquid form from 10°C to 95°C . Heat required, Q = mcp(l) ∆T ,where m is the…

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A: Dear student I have given answer to your question in the image format.

Q: How much heat will 325.0 g H2O at 15.0 oC absorb if the temperature in increased to 90.0 oC? The…

A: Solution

Q: An increase in water temperature is observed when 1.97 g of NaOH is added. The enthalpy change for…

A: Given: The mass of NaOH added = 1.97 g The enthalpy change of the reaction = -2.19 kJ An increase in…

Q: 32. How much heat (in kJ) is absorbed in the process of making 0.813 mol of CF₄ from the following…

A: The answer to both the questions are given as:

Q: Use the Born Haber cycle to calculate the lattice energy of Na20(s) from the following data.…

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Q: The heat capacity, Cp, of liquid carbon disulfide is a relatively constant 78 J/(mol K). However,…

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Q: Based on the data below, what mass of propane must be burned to supply the heat required to vaporize…

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Q: Before the introduction of chlorofluorocarbons, sulfur dioxide (enthalpy of vaporization, 6.00…

A: The total amount of required energy to evaporate the 1.0 kg of CCl2F2 is; 1000 g=1.00 kgnCCl2F2=1000…

Q: how many joules of heat are required to heat 25.0 g of ethyl alcohol from the prevailing room…

A: Given, mass of ethyl alcohol is 25.0g, initial temperature is 22.50C, final temperature is 78.50C.…

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Q: at quantity of heat, in kJ, is required to avert 28.0 g of ethanol (C2H5OH) at 0°C to a vapor at…

A: We have to find amount of energy required

Q: Determine the amount of heat required to convert 500.0 g of liquid ethanol at 25.0°C into gaseous…

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

Q: 11. When 6.50 g of solid NaOH is dissolved in 100,0 g of water in a calorimeter, the temperature…

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Q: Estimate the absolute entropy of carbon disulfide at 99 K99 K

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Q: What is the enthalpy change when 8.20 moles ammonium chloride form in the following equation?…

A: The given balanced chemical equation is as follows --- N2 (g) + 4 H2 (g) + Cl2 (g)   -->   2…

Q: Consider the following thermodynamic data for copper metal: Melting point 1090 C Boiling point 2930…

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Q: 8.11 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70 °C.…

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Q: The following information is given for ethanol at 1 atm: Boiling point = 78.40°C Heat of…

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Q: 3.15 mol of an unknown solid is placed into enough water to make 150.0 mL of solution. The…

A: To calculate the mass of solution  q = ∆H = mC∆T q = ∆H = heat = ? m = mass = 150.0 ml x 1.20 g/ml =…

Q: A 0.532 g0.532 g sample of steam at 106.4 °C106.4 °C is condensed into a container with 5.60 g5.60 g…

A: Given- Mass of steam = 0.532 g Mass of water = 5.60 g Initial temperature of steam = 106.4 °C…

Q: How much energy is released when 10.0 g of water (H2O) at 50 °C is cooled, completely frozen, and…

A: The stepwise solution is as follows-

Q: How much heat, in joules and in calories, must be added to a 89.1 g chromium block with a specific…

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Q: Before the introduction of chlorofluorocarbons, sulfur dioxide (enthalpy of vaporization=25.00…

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Q: How much heat (kJ) is absorbed by 948.0 g of water in order for the temperature to increase from…

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Q: How much heat energy is required to boil 66.7 g of ammonia, NH3? The molar heat of vaporization of…

A: Mass of NH3 = 66.7 g  Molar heat of vaporization = 23.4 KJ/mol

Q: A: 4.91 g of LiCl was dissolved in 50.0 mL of water in the same calorimeter as in problem 1.…

A:

Q: Calculate the heat required to bring 10.0 g CCl2F2 from -29.8 °C as a liquid to the gas phase at…

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Q: How much energy is required to heat 17.1 g acetone (MM = 58.08 g/mol) from a solid at -114.0°C to a…

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Q: Based on the thermodynamic properties provided for methanol (below), select from the following list…

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Q: From the data below, calculate the total heat (in J) needed to convert 0.267 mol of gaseous ethanol…

A: In the above mentioned process, we first need to cool the gas from 300 °C to boiling point…