Calculate the change in entropy that occurs in the system when 45.0 g of acetone (C3H6O) freezes at its melting point (-94.8 °C). See Table 11.9 for heats of fusion

Q: The enthalpy of vaporization of methanol (CH30H) is 35.3 kJ/mol at the boiling point of 64.2 °C.…

A: formuls for this is: entropy change = enthalapy of vapourisation/Boilling temp.

Q: Choose the system with the greater entropy in each case:(a) 1 mol of H2(g) at STP or 1 mol of SO2(g)…

A: The give question can be answered by using Boltzmann entropy formula, K is Boltzmann constant. W is…

Q: 8) For which of the following will the entropy of the system increase? A) reaction of magnesium with…

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Q: Calculate the change in entropy that occurs in the system when 25.0 g of water condenses from a gas…

A: When water condenses from its vapor state to liquid state, heat ,,is released by the system,. The…

Q: Of the following, which system shows a decrease in entropy? A CHJOH (ACH3OH (g) B. NaCI (s- Na (ag)…

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Q: Which of the following substances exhibits the greatest standard molar entropy, So? Select one: H2…

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Q: What molecular property does entropy reflect?

A: ENTROPY Entropy is the measure of disorderness or randomness of the system. It is a thermodynamic…

Q: Calculate the change in entropy that occurs in the system when 1.00 mole of isopropyl alcohol…

A: Given data Number of mole of isopropyl alcohol : n = 1.00 mole Boiling point of isopropyl alcohol :…

Q: Steam is condensed at 100°C and the water is cooled to 0 °C and frozen to ice. What is the molar…

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Q: Which of the following exhibits negative entropy change? O An ice cube melts on the table. O A lump…

A: The objective of the question is to find out which one of the following is an example of negative…

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: Describe the spontaneity and entropy of the processes. Sublimation of naphthalene balls as…

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Q: Isomers are molecules that have the same chemical formula but different arrangements of atoms, as…

A: C5H12 has three possible skeletal isomers: n-pentane iso-pentane neo-pentane Their structures are:…

Q: Calculate the change in entropy that occurs in the system when 45.8 g of diethyl ether (C4H10O)…

A:

Q: How does entropy predict the spontaneity of any process in the environment?

A: The measurement of the disorderedness of the system is defined as entropy. For example; the melting…

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: How does the entropy (S) of the system change when heating hydrogen gas from 60.0°C to 80.0°C?

A: Entropy is a measure or tendency in nature for systems to went towards a physical or chemical state…

Q: The accompanying diagram shows how entropy varies with temperature for a substance that is a gas at…

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Q: Calculate the change in entropy that occurs in the system when 1.33 mol of acetone (C3 H6O)…

A: Given: The number of moles of acetone is 1.33 mol The normal boiling point is 56.1oC The heat of…

Q: VII. Predict the sign of entropy. Write P if it is positive and N for negative. Write your answer on…

A: Since you have posted a question with multiple sub-parts, as per our company guidelines we are…

Q: Increase or decrease in entropy? a. 2NH3 (g)  N2 (g) + 3H2 (g) b. making dry ice from CO2 gas c.…

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Q: What is the change in entropy in a large mass of water at 50 °C when it receives 155 kJ of energy in…

A: Answer is explained below. Given that, the change is reversible and the mass of water is large…

Q: How does the molar entropy of a substance change with increasing temperature?

A: The randomness of the system is measured by the term, called entropy. The entropy of a system is an…

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 increase in entropy of 1.00 kg of ice originally at 0 oC that is melted to form water a…

A: Change in entropy is given by: ∆S=∆qT∆S=m×LfT

Q: the decomposition of ammonia to nitrogen and hydrogen gas. Substance S° (J/mol · K) H2(g) 130.7…

A: Entropy measures the randomness of the molecule. Gaseous molecule have higher entropy than liquid…

Q: During a certain reversible process, the surroundings undergo an entropy change, ∆Ssurr = -78…

A: As per the thermodynamic concept, the entropy of universe is the sum of entropy of system and…

Q: Suppose 20 g of ice at 0 °C is added to 300 g of water at 60 °C . What is the total change in…

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Q: Rank the following substances in order of decreasing standard molar entropy (S°). Rank the gases…

A: Molar entropy: The standard Molar entropy of a substance is the entropy content of one mole of a…

Q: What is the entropy change when 1.55 moles of CHCl₃ vaporizes at 61.0 °C? [∆H(vap) = 29.6 kJ/mol at…

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Q: What happens to the entropy of a sample of the matter when it changes state from a solid to a…

A: Entropy of a system is defined as the measure of randmnoss,or disorder. Entropy is an extensive…

Q: How do you predict the entropy of a gas will change if a 2.0 L sample of that gas is compressed to a…

A: The entropy of a system is defined as the measure of randomness between the particles present in a…

Q: An iron nail is placed in a sealed glass jar filled with humid air (the "system").  After the nail…

A: Change in entropy (ΔS) is defined as the ratio of heat transfer (Q) and temperature (T). The…

Q: Define the term entropy in thermodynamics. (ii)    In what way entropy is related to third law of…

A: ANSWER

Q: In each pair, choose the system that has greater entropy and explain your choice: (a) 1 mol of…

A: Given pairs, (a) 1 mol of NaCl(s) or 1 mol of HCl(g) at 25 °C (b) 2 mol of HCl(g) or 1 mol of HCl(g)…

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: What is the change in entropy of 100g of water it is heated from room temperature 20 degree Celsius…

A: Entropy of a system is defined as the disordness or randomness of a system. It is also obtained by…

Q: Q.6 The standard enthalpy of combustion of solid urea (CO(NH2)2) is -632 kJ mol at 298 K and its…

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Q: What is the entropy change, in J mol-1 K-1, when 100.0 g of water boils at 100.0 oC?…

A: The relation between deltaH vaporization and change in entropy is:

Q: In a certain spontaneous process, the system undergoes an entropy change of 4.2 J>K; therefore,…

A: For a spontaneous process, the entropy of a system is less than the entropy of surroundings.

Q: Calculate the change in entropy that occurs in the system when 21.0 g of diethyl ether condenses…

A: Entropy is the measurement of the randomness of the particles of the difference systems. Gases have…

Q: Acetic acid, CH3COOH, freezes at 16.6°C. The heat of fusion,
Hfus, is 69.0 J/g. What is the change…

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Q: describe the behavior of the entropy of a substance as it changes phase from solid to liquid to gas

A: Increasing order of entropy : Solid < Liquid  < Gas Entropy will increase when solid converts…

Q: . Chloroform, CHC13, has a normal boiling point of 61 °C and it enthalpy of vaporization is 29.24…

A: Formula used:- ∆G°=∆H°-T∆S° But in this condition ∆G° = 0  Thus new formula is ∆S° = ∆H°/T