esc F1 栄: F3 2 F5 Thiophene, C4H4S, is a fairly volatile liquid with a vapor pressure of 40.0 torr at 12.5 C, and its normal boiling point is 84.0°C. Calculate an estimate of thiophene's enthalpy of vaporization in kJ/mol 9. Heas

Q: What is AH°, for the following phase change? Q (1) → Q (s)

A: Enthalpy change for this phase transition is determined as :

Q: Given that ΔHvap is 46.4 kJ/mol, and the boiling point is 83.4°C, 1 atm, if one mole of this…

A: When vaprizaton occur means randomness increase means entropy will increase. So that we calculate…

Q: 6.48 Diamond and graphite are two crystallıne forms of 1 atm and 25°C, diamond changes to graphite…

A: According to Hess's law, the enthalpy change of the final reaction can be calculated by adding the…

Q: se the Standard Enthalpies of Vaporization and Fusion given below to answer the following question .…

A: Enthalpy of fusion is given to be 6.01 kJ/mol. This means that 6.01 kJ of heat is released when 1…

Q: Steam can cause more severe burns than water, even if both are at the same temperature. Calculate…

A: Soln

Q: Steam can cause more severe burns than water, even if both are at the same temperature. Calculate…

A: Steam must release energy equivalent to the enthalpy of vaporization of water to convert to water.…

Q: Substance Specific Heat, c (J/g×°C) Water 4.184 Granite 0.803 Mercury 0.140 Silver 0.235 Aluminum…

A: Answer:- this question is answered by using the simple concept of calorimetry which states that heat…

Q: Suppose you heated a sample of 12.20 grams of water at its boiling point until it completely…

A:

Q: Steam can cause more severe burns than water, even if both are at the same temperature. Calculate…

A: Heat can be calculated using formula q=ms∆T q= heat m= mass s= specific heat ∆T= change in…

Q: c) At what temperature does the substance melt ? T: °C d) Using the figure, approximate the molar…

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Q: A ten ounce glass of tea (285 g) is at room temperature (25.0 °C). Two ice cubes with a mass of 50.0…

A: c. Yes, the energy to melt the ice is larger than the energy to cool the drink.

Q: 9. Calculate the final temperature of a mixture of 100.0g of lead at 85.0°C are added to a mixture…

A: Answer: When lead, which is at higher temperature than ice, will be added with ice, lead will lose…

Q: In an experiment, 10.0 g of ice at −20.0°C is converted into steam with a temperature of 110.0°C.…

A: Given,  10.0 g of ice at −20.0°C is converted into steam with a temperature of 110.0°C. The required…

Q: the heat of vaporization of water is 2260 J/g. determine q when 100 g of steam at 100 C is condensed…

A: Given that  Temperature = 100°C  heat of vaporization = 2260j/mol…

Q: Assuming no phase transition, what is the change in Tempe (C°) if 310.0 mL ethanol (molar mass 46.08…

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Q: The following information is given for mercury, Hg, at 1atm: boiling point = 357 °C Hvap(357 °C) =…

A: The heat of vaporization represents the amount of heat needed to vaporize a liquid species into its…

Q: What is ΔH° for the following phase change? NaCl(s) → NaCl(l) Substance ΔH°f (kJ/mol) NaCl(s)…

A: Given NaCl(s) → NaCl(l)Substance          ΔH°f (kJ/mol)NaCl(s)               –411.12NaCl(l)…

Q: Energy Constants for H2O 334 J/g = Heat of Fusion (Hf) 2260 J/g = Heat of Vaporization (Hv) 2.11…

A: The question is based on the concept of Hess law. it states that net enthalpy change remains…

Q: The boiling point of ethanol is 78 °C. For which of the following processes will AH, ASPAn, and AGxn…

A: We know for condensation  ∆S=(-)ve as the substance undergoes change in arrangement from orderly to…

Q: If a 348 g sample of steam at 127oC is cooled to 103oC, find the change in heat content of the…

A: NOTE : Since you've posted multiple questions,we've solved first question for you. If you want any…

Q: 18. The heat of vaporization of a liquid (AHvap) is the heat required to vaporize 1.00 g of a…

A: Given that -  Mass of nitrogen liquid used = 60.0 g  Mass of water used = 200 g  Initial temperature…

Q: Part A The optimum drinking temperature for a Shiraz is 15.0 °C. A certain bottle of Shiraz having a…

A:

Q: 12.) A 36.0 g sample of liquid water at 100.0°C is heated to 145.0 C. How much heat does the water…

A: Given: mass of liquid water = 36.0 g Initial temperature of water = 100 oC Final temperature of…

Q: How much energy is required to vaporize 54.7 g of dichloromethane (CH2Cl2) at its boiling point, if…

A: Given ΔHvap = 31.6 kJ/mol Mass of dichloromethane = 54.7 g Molar mass of dichloromethane = 85g/mol

Q: The heat capacity of ice is 2.108 J/g C. If I take an 8.019 g sample of Moderna vaccine that is kept…

A: Given, Mass of the sample (m) = 8.019 g Initial temperature (Ti) = -68.7 °C Final temperature (Tf) =…

Q: Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum)…

A: Interpretation - To determine the mass or grams of liquid Na (minimum) which needed to absorb energy…

Q: The specific heat of silver 0.24 J/g°C. How many joules of energy are needed to warm 4.37g of silver…

A:

Q: Using a coffee-cup calorimeter it was found that when an ice cube weighing 24.60 g melts, it absorbs…

A: ∆H ( enthalpy of fusion ) for this melting process is calculated in kJ/mol using formula :  ∆H = q /…

Q: The familiar "ether" used as an anaesthetic agent is diethyl ether, C4H20O. Its heat of vaporization…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: The optimum drinking temperature for a Shiraz is 15.0 °C. A certain bottle of Shiraz having a heat…

A:

Q: 60.0 g of ice at 0 °C is dropped in 140 g of water at 80 °C. Calculate the final temperature in °C…

A: Suppose the final temperature of the thermal equilibrium state after mixing is T oC. So T oC is the…

Q: How many grams of ice at -14.4 ∘C can be completely converted to liquid at 9.6 ∘C if the available…

A: Answer:- this question is answered by using the simple concept of calculation of heat using the…

Q: The heat capacity of ice is 2.108 J/g C. If I take a 9.75 g sample of Moderna vaccine that is kept…

A: Given: The heat capacity of ice = 2.108 J/g∘C We have to find the amount of heat required to heat a…

Q: You add a 5.00 g piece of ice to 25.00g of water at 20 °C. Calculate the temperature of the water…

A: Given: Mass of ice (mi) = 5.00 g Mass of water (mw) = 25.00 g Specific heat of water (Cw) = 4.184…

Q: The following information is given for mercury, Hg, at 1 atm: boiling point = 357 °C AH ap(357 °C) =…

A: The change in enthalpy of a chemical reaction is the total amount of heat released or absorbed in…

Q: How much heat is absorbed by 20 g of gold when it is heated from 25oC to 35oC? The specific heat of…

A:

Q: Under normal atmospheric pressure, nitrogen boils (and condenses) at -196o When 7.7 g of nitrogen…

A:

Q: Which produces more heat?Os(s) ⟶ 2O2(g) ⟶ OsO4(s)orOs(s) ⟶ 2O2(g) ⟶ OsO4(g)for the phase change…

A:

Q: This question pertains to a situation in which you bring 10 g of substance X at 35 °C into contact…

A: In the conversion of 35 oC liquid x-substance to 29.8oC solid x-substance, energy released (E) is…

Q: 15.A food label states that one serving has 38 Cal. How many joules is this? (1 cal-4.184 J)

A: Food contains 38 cal

Q: A 6.75g sample of gold (specific heat capacity of Au= 0.130 J/gC) is heated using 40.2 J of energy.…

A: Since the heat required for heating is given by  Q = mCΔT where m = mass  C = specific heat capacity…

Q: The heat capacity of ice is 2.108 J/g C. If I take a 8.138 g sample of Moderna vaccine that is kept…

A: Given: heat capacity of ice  =2.108J/gC.  To find: Energy taken if a 8.138 g sample of Moderna…

Q: How much energy is required to vaporize 41.4 g of dichloromethane (CH2Cl2) at its boiling point, if…

A:

Q: The heat capacity of silicon dioxide (SiO2, 60.1 g mol-1), is 0.732 J g¬ K-1. Calculate the energy…

A: The heat capacity of SiO2 is = 0.732 J g-1 K-1 The molar mass of SiO2 is =60.1 g.mol-1 The moles of…

Q: se Trouton's rule to estimate the enthalpy of vaporization for a substance whose boiling point is 80…

A: Given : Boiling point = 800C

Q: Which material will show the smallest temperature change upon absorbing the same amount of heat (SH…

A: The heat required to raise the temperature of 1 g of a substance by 10C is known as specific heat…

Q: Calculate the heat in kJ for 175 g of water vapor condensing to liquid water from 228.0 oC to 175.0…

A: Given: Mass of water vapour = 175 g Initial temperature (T1) = 228°C Final temperature (T2) = 175°C…

Q: How much energy will be released by cooling 28.2 grams of steam from 118°C to 37°C?   cice = 2.02…

A: Here we have to determine the amount of heat required to convert 28.2 g of steam from 118°C to…

Q: Calculate the amount of heat (in kJ) required to raise the temperature of a 86.0 g sample of ethanol…

A: The temperature change (ΔT) is given.