Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 ℃ to a final temperature of 750 ℃. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol-1 K-1 and 31.75 J mol-1 K-1, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 ℃) is 396.57 J g-1. The molar mass of aluminum is 26.98 g mol-1. (Please explain as much as possible. Why did you use the equation? Or what conditions did you see from the question? etc)

Question

Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 ℃ to a final temperature of 750 ℃. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol-1 K-1 and 31.75 J mol-1 K-1, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 ℃) is 396.57 J g-1. The molar mass of aluminum is 26.98 g mol-1.

(Please explain as much as possible. Why did you use the equation? Or what conditions did you see from the question? etc)

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Chemistry

Related Chemistry Q&A

Find answers to questions asked by students like you.

Q: 2.25 g of C6H12O6 is burned in a bomb calorimeter containing 550. g of water and the temperature inc...

A: Given,Mass of C6H12O6 = 2.25 gMass of water = 550 gInitial temperature = 25.0oCFinal temperature = 3...

Q: What is the molar heat capacity of water?

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg substanc...

Q: Complete and balance the following combustion reaction. C2H6O(l) + O2(g) ------>

A: The combustion reaction is given as,

Q: Water gas, a mixture of H2 and CO, is an important industrial fuel produced by the reaction of steam...

A: The standard enthalpy of combustion for a given reaction can be defined as the change in the change ...

Q: balance this redox reaction:

A: The balanced chemical equation is the equation in which total charge and the number of atoms of each...

Q: Indicate the mols present in the following solution: 20 ml of 0.20 M HCl + 10.0 ml of 0.500 M HCl

A: 20 ml of 0.20 M HClCalculation for number of moles:

Q: An unknown mass of each substance, initially at 25.0°C absorbs 1910 J of heat. The final temperature...

A: (A)The mass of the Pyrex glass can be calculated as

Q: A sample of gas in a cylindrical chamber fit with a movable piston occupied a volume of 4.141 liters...

A: Initial volume,V1 = 4.141 LIntial pressure,P1 = 817 torrFinal pressure,P2 = 1008 torr

Q: The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 500°C is 0.5 × 10-6. Cal...

A: In this question calculate the no. of vacancies.Given that,

Q: question 10. predict the product of the following reaction

A: The reaction between carbonyl compound ketone and Grignard reagent is given in step 2

Q: A child's ballon containing 6.0L of helium gas at sea level is released and floats away into the atm...

A: Assuming helium a perfect gas, it will follow universal gas law.

Q: Question 8

A: The heat gained by the water is calculated as,

Q: A balloon (filled with N2) has a volume of 2.2 L at room temperature (25oC).  If the same balloon is...

A: Given:Temperature T1 = 25oC = 25+273 = 298 KVolume V1 = 2.2 L.Temperature T2 = -16 oC = -16 +273 = 2...

Q: How many grams of KNO3 (molar mass = 101.103 g/mol) should be used to make 125.0 mL of 0.030 M solut...

A: Given,Molarity of the solution = 0.030M.Volume of the solution = 125.0mL = 0.125L.

Q: Help

A: the best fit line of the graph is 

Q: how would heating the flask too long resulting in air outside the flask entering and displacing some...

A: Click to see the answer

Q: A 250.0 mL flask contains 0.200 g of a gas at 212 mmHg and 23oC, what is the molar mass of the gas?

A: Given:Volume = 250.0 mL = 0.250 L.Temperature = 23oC = 296 KPressure = 212 mmHg = 0.279 atm.Mass = 0...

Q: The two sides of the DNA double helix are connected by pairs of bases (adenine, thymine, cytosine, a...

A: The force exerted by O- on H+ and N- has to be calculated.This is a force of repulsion between O- an...

Q: What is the theoretical yield of aluminum oxide if 3.00 mol of aluminum metal is exposed to 2.55 mol...

A: The number of moles for a given chemical species can be defined as the ratio of its mass to the mole...

Q: Write mechanisms showing the conversion of benzyl chloride to benzyl alcohol by both Sn1 and Sn2 pat...

A: Click to see the answer

Q: Classify structure A, B, and C in the figure as being either an enantiomer, diasteromer or epimer of...

A: Enantiomers: They are chiral molecules whose mirror images are not super imposable.Diastereomers: Th...

Q: The temperature rises from 25.00°C to 29.00°C in a bomb calorimeter when 3.50 g of sucrose undergoes...

A: Given,Mass of sucrose = 3.50g

Q: In the Benedict's test:   a. A redox reaction is occurred                 b. a brick red...

A: Benedict’s reagent is a complex mixture of sodium carbonate, sodium citrate and copper (II) sulphate...

Q: [Review Topics] References) Classify the following compounds as chiral, achiral (but not meso), or m...

A: The compounds are classified as chiral, achiral, and meso compounds in step two.

Q: Classify each statement as a property of ethers, alcohols, or both ethers and alcohols. 1. These ...

A: Alcohols have both H-bond donor and H-bond acceptor. Hence, they can form H-bonds among themselves a...

Q: For the aqueous [Cu(NH3)4]^2+ complex =Kf=5.6x10^11 at 25°C.Suppose equal volumes of 0.0058M Cu(NO3)...

A: The overall formation constant for the reaction is shown in equation  (1) in which Kf is the overall...

Q: Calculate the energy of the red light emitted by a neon atom with a wavelength of 680 nm.

A: Energy of electromagnetic radiation is given by

Q: Titrating using indicators have limitations. Describe one limitation using a change of solution colo...

A: Different indicators are used to detect the end point in a titration. But, there are some limitation...

Q: LP gas burns according to the exothermic reaction: C3H8(g)+5 O2(g)→3 CO2(g)+4 H2O(g)ΔH∘rxn=−2044 kJ ...

A: Given:The balanced chemical equation:C3H8(g)+5 O2(g)→3 CO2(g)+4 H2O(g)ΔH∘rxn=−2044 kJVolume of water...

Q: 70 Nitrogen dioxide (NO2 gas and liquid water (H20) react to form aqueous nitric acid (HNO3) and nit...

A: The balanced reaction of nitrogen dioxide and water is

Q: Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.1...

A: The given reaction is written below.M (s) + 2HCl(aq) → MCl2(aq) + H2(g) The relation between millili...

Q: What is the molarity of a solution that contains 401.8 g of sodium chloride dissolved in 608.8 mL of...

A: Equation for calculating molarity is given below.

Q: When KClO3 (122.5465 g/mol) is strongly heated, it decomposes into KCl and oxygen gas. 2 KClO3 (s) -...

A: Given:2 KClO3 (s) --> 2 KCl (s) + 3 O2 (g)

Q: Determine analysis: 52.2% C; 13.0 % H; 34.8 % O. 1 ( An organic compound witha molar mass of 116.2 g...

A: Given:Molar mass = 116.2% C = 62.01 %% of H = 10.43%% of O = 27.54 %Determine the EF and MFNOTE: MF ...

Q: When water is added to solid calcium carbide, CaC2, the produces are acetylene gas, C2H2, and aqueou...

A: Given information:                                              Moles of calcium carbide = 0.50 mole...

Q: What is the hybridization of the two oxygen atoms in the amino acid glycine, shown above?  Lone pair...

A: The Lewis structure of Glycine:

Q: When 3.50 g of Ba(s) is added to 100.00 g of water in a container open to the atmosphere, the reacti...

A: GivenMass of Ba(s) = 3.50gMass of water = 100.0gSpecific heat of solution = 4.18 J/g°CTemperature ri...

Q: Given the follow ing equation: 2 NaCl03 2 NaCl + 3 02, if 12.00 moles of NaClO3 reacted in the 7. re...

A: The balanced chemical equation for the reaction is given below:

Q: How many moles of phosphine are prepared from 7.00 moles of Ca3P2?

A: Phosphine can be prepared by the reaction of calcium phosphide and water. The balanced reaction of f...

Q: Photovoltaic cells convert solar energy into electricity. Calculate the wavelength of light (in nm) ...

A: In the photoelectric effect, the threshold work function can be defined as the energy which is requi...

Q: Hydrogen peroxide is an effective oxidizing agent, accepting two electrons. It will oxidizediron(II)...

A: Redox reaction are those reactions in which oxidation (loss of electrons) and reduction (gain of ele...

Q: What is the concentration of a solution with an absorbance of 0.23 a.u. in ppm when y=45.3509y

A: In absorbance (y) versus dilution factor (x) curve, the slope of the curve gives the value for molar...

Q: How much heat is produced by the complete reaction of 6.81 kg of nitromethane? Nitromethane (CH3NO2)...

A: According to the given balanced chemical reaction,

Q: If a gas sample weighed 3.97 grams occupies 2.768 liters at STP what would be the molas mass of this...

A: Calculation for number of moles:At STP, 1 mole of any gas occupies 22.4 Litre of Volume

Q: Scores A 150.0-mL bubble of hot gases at 209 °C and 2.00 atm escapes from an active volcano. eText P...

A: Given:Initial volume of Bubble =  150 mL = V1 Initial T = 209 o C = 482.15 K = T1Initial P = 2 atm =...

Q: Question 6

A: Given information:Mass of sample = 1.00 kgAmount of heat or energy added to it = 35.0 kJInitial temp...

Q: Hydrogen peroxide is an effective oxidizing agent, accepting two electrons. It will oxidizediron(II)...

A: Reaction of Fe(C2O4)2- with Hydrogen peroxide is given below:

Q: IV) Complete and balance the following equations: N1aC Na2SO3 HСГ a) (gas evolution) KOH H2SO4 b) (a...

A: We are authorized to answer one question at a time, since you have not mentioned which part you are ...

Q: Question 1

A: Number of moles of a substance , mass and molar mass of a substance are related using the equation b...

Q: What happens to 8 L volume of gas as you move from pressure of 3 atm to 4 atm

A: Boyle’s law states that the pressure of an ideal gas is inversely proportional to its volume at the ...