The entropy of potassium peroxide, (K2O2 ) is 113.1 J/K. If you have 29.76 g of K2O2 what is the standard molar entropy in J/molK?

Q: Determine the entropy of * H₂(g) + Br2(g) → 2HBr (g)

A: Entropy measures the extent of the randomness of a system. It is represented by S. It increases with…

Q: The heat of vaporization AH, of benzene (CH) is 44.3 kJ/mol. Calculate the change in entropy AS when…

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Q: The entropy change ΔS for a phase transition equals ΔH/T, where ΔH is the enthalpy change. Why is it…

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Q: For ammonia (NH3), the enthalpy of fusion is 5.65 kJ/mol and the entropy of fusion is 28.9 J/K·mol.…

A: Answer- Enthalpy- Enthalpy is the amount of internal energy contained in a compound whereas entropy…

Q: Calculate the entropy change for the vaporization of one mole of ethanol, CH3CH₂OH, at its normal…

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Q: Ice melts at 273 K. The enthalpy of fusion of water is 6.35 KJ/mol. The entropy of melting 1 mole of…

A: Melting point = 273 K Enthalpy of fusion (∆Hf) = 6.35 KJ/mole = 6350 J/mol (1 KJ = 1000 J) Number of…

Q: The standard entropy of diamond is 2.4 J/mol × K. Calculate the entropy per carbon atom in diamond…

A: Entropy of the substance describes the state of disorderliness or randomness of the molecules or…

Q: The element mercury, Hg, is a silvery liquid at room temperature.  The normal freeing point of…

A: In this question, we want to determine the ∆S value means entropy change in J/K unit. You can see…

Q: The standard molar entropy for Br2(g) is 245.46 J/(mol-K) at 25°C. Given that AS - 104.58 J/K for…

A: For the dissociation of Br2 (g) into Br (g) at 25oC, the entropy change, ΔS, is calculated as shown…

Q: Calculate the change in molar entropy when hydrogen gas is heated from 20°C to 30°C at constant…

A: Entropy change of the system is a state function. The change in entropy is the sum of the change in…

Q: A system contains 859 particles and has 4.43 x 1025 possible configurations. What is the entropy of…

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Q: Determine the entropy difference between solid and liquid states for a substance melting at 100 °C…

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Q: What is the change in entropy when (a) 100 g of ice is melted at 0 °C, (b) 100 g of water is heated…

A: Entropy is used to determine the disorders or  randomness of the system.  The reaction is shown…

Q: Which one of the following would be expected to have the lowest standard molar entropy, S°, at 25°C?…

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Q: Explain how the entropy of a system is related to the number ofpossible microstates?

A: To find: The relation between the entropy and number of possible microstates

Q: Which of the following has the largest standard molar entropy, S° (298.15 K)? О а. Н2 (g) O b. NaCI…

A: Answer  The substance in gases state has higher entropy compared to…

Q: Under standard conditions the absolute entropy of liquid water is (H2O(l)) = 69.91 J K-1 mol-1 .…

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Q: The heat of fusion for water is 333.6 J/g. What is the entropy change for the universe when 1.00 L…

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Q: How much heat is removed from the condensation of water at 25 C? Given the standard entropy of the…

A: A numerical problem based on chemical thermodynamics that is to be accomplished.

Q: H2S (g) has more positional entropy than does O2 (g). True False

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Q: The heat of vaporization AH, of methanol (CH,OH) is 35.3 kJ/mol. Calculate the change in entropy AS…

A: We have to predict the change in entropy.

Q: Calculate the change in entropy that occurs in the system when 1.00 mole of diethyl ether (C4H10O)…

A: A compound has three phases. These forms are solid, liquid and gas. When one phase is converted to…

Q: 1. The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0 °C to 560…

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Q: What is the entropy when a system goes from 4 microstates to 5 microstates?

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Q: entropy change

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Q: If the absolute entropy for O2 (g) is 126 J/(mole∙K), what is the ΔS for the complete combustion of…

A: C2H4 (g) on complete combustion gives CO2(g) and H2O(g)  We need a balanced equation for the…

Q: A heat source generates heat at a rate of 71.0 W (1 W = 1 J/s). How much entropy does this produce…

A: The value of entropy change is as follows.

Q: The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0°C to 560 °C,…

A: Since the units of T to be substituted in the Cp equation is not mentioned. Hence i'm assuming it to…

Q: Suppose a compound could point in any of three directions in the solid and still have the same…

A: • This problem is based upon the third law of thermodynamics.  • This law can be given as, Total…

Q: Consider the reaction H2(g) + C2H4(g)- →C2H6(g) Using standard thermodynamic data at 298K, calculate…

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Q: Chloroform, CHCl3, is a solvent and has been used as an anesthetic. The heat of vaporization of…

A: We have:   Thus, the amount of energy required to boil 1.44 moles of CHCl3 is:

Q: C2H4(g) + H2O(g)CH3CH2OH(g)Using standard thermodynamic data at 298K, calculate the entropy change…

A: The entropy change for the reaction of 1 mole of C2H4(g) can be calculated by subtracting the…

Q: What is the entropy change when 315 J of energy is reversibly transferred to a sample of water at…

A: Entropy change of a system for reversible process is given by  where ΔS = entropy change  Q = heat…

Q: What is the entropy change of a gas in J/K (to 2 decimal points) when one mole of a perfect gas…

A: Given that -  Number of moles of gas = 1  Initial volume of gas = 0.36 m3  Final volume of gas =…

Q: A heat source generates heat at a rate of 71.0 W (1 W = 1 J/s). How much entropy does this produce…

A: The heat generated by the heat source is = 71.0 W = 71.0 J/s The temperature of the surrounding is =…

Q: The entropy change for the process H2O(s)⟶H2O(l) is 15.2 J/K and requires that the surroundings…

A: Reaction: H2O(s) ⟶ H2O(l) ∆Ssystem = 15.2 J/K ∆H = 38.6 KJ ∆STotal =? T = 76.3 °C = 76.3 + 273.15 =…

Q: One mol of an ideal gas at 300 K expands reversibly from 3 x 102 m³ to 5 x 102 m3, Calculate the…

A: Entropy change at contact temperature with change of volume relation given below

Q: Calculate the molar heat capacity (Cpm ) of Magnesium chloride if the change in entropy is 0.264 J/K…

A: Assuming that the molar heat capacity (Cpm ) of  Magnesium chloride is constant over temperature…

Q: What is the entropy of the process when 0.6831 moles of N 2 gas are compressed from 54.42 L to 28.11…

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Q: 1. The heat capacity at 1 atm. pressure of solid magnesium in the temperature range from 0 °C to 560…

A: The unit of temperature is not mentioned therefore i am using kelvin. Data given: T2 =800K, T1…

Q: 2.1. For the isothermal expansion of a gas into a vacuum, (a) Is this a spontaneous process? (b)…

A: a. During this constant temperature or isothermal, expansion into a vacuum, the gas does no work (w…

Q: A goldfish swims in a large bowl of water at 20 °c . Over a period of time, the fish transfers 120 J…

A: The change in entropy of the water can be determined as follows, dS = dQ/T

Q: How does the entropy of ice at −5°C diff er, if at all, from its entropy at −50°C?

A: Entropy- Entropy is a thermodynamic property. Entropy determines tendency of process. Tendency means…

Q: A block of copper is initially at T=500 K. As it cools to room temperature, 1000 J of heat flows out…

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

Q: The heat of vaporization AH, of benzene (CH) is 44.3 kJ/mol. Calculate the change in entropy AS when…

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Q: What is the entropy of a system that has only a single microstate?

A: Entropy is defined in the terms of randomness that a system possess or the disordered state. Change…

Q: The ethyl alcohol vaporizes at 78 degrees Celcius, what is the change in entropy if 0.25 kg…

A: Solution - According to the question - Given - Change in entropy = ? S = ? H / T ? H = Heat change…

Q: Consider a process in which 100 kJ of energy is transferred reversibly and isothermally as heat to a…

A: Entropy is the measure of degree of randomness. The change in entropy can be measured as follows:…

Q: 1. The heat capacity at 1 atm. pressure of solid magnesium in the temperature rançe from 0 °C to 560…

A: The increase of entropy per g. atom is to be calculated