(a) For a certain system, q = -850 J and the volume changes from 16.37 L to 370. cm³ at a constant external pressure of 1336 torr. (760 torr 760 mmHg = 1.01325 x 10° Pa = 1 atm) (i) Explain in thermodynamic terminology what is happening in this system. (ii) Calculate the internal energy change for this system.

Q: For a certain process at 297 K, AG = +929 kJ and AH=+501 kJ. What is AS for this process?

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Q: A 0.357 mol sample of N, (g), initially at 298 K and 1.00 atm, is held at constant pressure while…

A: Given that, The molar heat capacity at constant pressure is equal tp 7/2 R. R=8.3145 J/mol.K cp=7/2…

Q: (a) Write an equation that expresses the first law of thermodynamicsin terms of heat and work. (b)…

A: a.

Q: 11 Q nple of KOH(s) at 25.0 C was added to 100.0 g of H,O(1) at room temperature inside an insulated…

A: Given that,  KOH is dissolved in water. After all the KOH is dissolved, the temperature of the…

Q: Discuss the statement that a system and its surroundings are distinguished by specifying the…

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Q: The molar heat capacities of substances varies with temperature. The general function for…

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Q: Q) When 2mol CO2 is heated at a constant pressure of 1.25 atm, its Temperature increases from 250 K…

A: Number of moles of CO2 = 2 Constant pressure = 1.25 atm  T1 = 250K  T2 = 277 K  Cp = 37.11Jk-1mol-1…

Q: Use the data given in the table to calculate the value of Δ?∘rxn at 25∘ C for the reaction described…

A: Since in qu you have mentioned  Δ?∘rxn. So I'm assuming it to be ΔH0rxn  Since for any reaction…

Q: The standard heat of combustion of liquid cyclopentane, C5H10(l),C5H10(l), was measured to be…

A: The difference between the enthalpy of the products and reactants is known as enthalpy of the…

Q: Given ΔHrxn∘= −135 kJ, ΔS∘rxn= −263 J/K, and T= 550 K, will the reaction be spontaneous or…

A: Solution :     The change in Gibbs free energy calculated by the change in entropy, temperature, and…

Q: For the following processes, calculate the change in internal energy of the system expressed in kJ…

A: According to first law of thermodynamics     ∆U =q +w    Where ∆U is change in internal energy,…

Q: Provide and discuss two examples or application that shows the significance of the Second Law of…

A: Second law of thermodynamics : According to this law, heat always flows from a body at a higher…

Q: Differentiate between state and nonstate thermodynamic systems using suitable examples.

A: Thermodynamics is basically that branch of physics which deals with heat, work, and temperature.…

Q: The standard enthalpy change of combustion [to CO,(g) and H,O(€)] at 25°C of the organic liquid…

A: Given information: Enthalpy change for combustion of liquid cyclohexane = -3731.7 kJ/mol

Q: Which of (i) volume, (ii) heat, (iii) internal energy, (iv) density are state functions?

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Q: For the reaction Cr(C6H6)2(s) → Cr(s) + 2 C6H6(g), ΔrU⦵(583 K) = +8.0 kJ mol−1. Find the…

A: Given: The reaction is as follows, delta Uorxn    = + 8.0 kJ/mol Temperature = 583 K

Q: When 8.95 moles of a liquid with a heat of vaporizations of 31.8 k) mol-1 is vaporized at 280 K and…

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Q: b) When the gas goes from A to B, how much work WAB is done by it on its environment? • Hint: The…

A: Area of the ellipse is  = (5V0-V0 ) × (3P0 - P0 )×π                                       =8P0V0π…

Q: Why is it necessary to define a modified standard state for biochemical applications of…

A: To find: The reason for a modified standard state for biochemical applications of thermodynamics.

Q: Calculate the standard enthalpy of formation of phenol, C 6H5OH, at 298.15 K given that, at this…

A: We are given the reaction 2C6H5OH + 15O2  →  12CO2 + 6H2O ΔFC6H5OH  = –165.0 KJ/mol ΔFH2O  =  –…

Q: Which thermodynamic quantities are not a state function?

A: Both path and state functions are frequently faced in thermodynamics. A thermodynamic property whose…

Q: What is AG (in kJ) for 2 SO2(g) + O2(g) 2 SO3(g) at 700 K, under standard conditions of 1 bar…

A: Given :-  2SO2(g) + O2(g) → 2SO3(g)  K at 700 K = 3.0 × 104  To calculate :- ∆G (in kJ)

Q: e) Differentiate between state and nonstate thermodynamic systems using suitable examples.

A: A state function usually depends final state - initial state of the system (path has no impact on…

Q: Enthalpy of Chemical Reactions As stated earlier, the change in internal energy is related to the…

A:

Q: and isotnermally from 1 Calculate the value of enthalpy per mole f the ideal gas expands…

A: 3d) Entropy of isothermal reversible,  □S = 2.303nR log(P1/P2) = 2.303 × 8.314× log(10/1) = 19.2…

Q: The heat of combustion of glucose, C6H12O6, is -673Kcal at 298k. Calculate the standard enthalpy of…

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Q: Elemental tin can be dissolved in acid solution as shown by the following equation: Sn + 2H (ag)→…

A: 1- First calculate the moles of hydrogen gas :  moles of Sn = [ mass / Molar mass of Sn ] moles of…

Q: Determine AG for the reaction CH, (g) +20, (g) ->2H,O(1) + CO,(g) and at 25°C. AH° =-256 kJ/mol, AS…

A: Given : ΔHo = -256 KJ/mol   And ΔSo = +514 J/mol.K = +0.514 KJ/mol.K…

Q: A sodium ion, Na+, with a charge of 1.6 * 10-19 C and a chlorideion, Cl - , with charge of -1.6 *…

A: Given: Charge of sodium ion = 1.6×10-19 C Charge of Chloride ion=-1.6×10-19 C Distance=0.50nm…

Q: What is the standard Gibbs free energy for the transformation of diamond to graphite at 298 K?…

A: The given reaction is as follows: Cdiamond → Cgraphite The standard Gibbs free energy = ?

Q: The complete combustion of 1.200 g of cinnamaldehyde (C9H8O), in a bomb calorimeter (Cbc = 3.640…

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Q: An ideal gas is contained in a 1.5 L moveable piston at STP. Pext C) Without performing any…

A: For a gas to be ideal, we assume that there is no force of attraction among the gaseous molecules…

Q: Estimate the possibility of spontaneous process at TO=308K, if AH° =420 kJ, ASO = 24 J/K.

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Q: The standard enthalpy of formation of H2O(l) at 298 K is -285.8 kJ/mol.Calculate the change in…

A: Given: Standard enthalpy of formation of H2O(l) is = -285.8 kJ/mol Standard enthalpy of formation of…

Q: The standard molar enthalpy of formation of molecular oxygen at 298 K is zero. What is its value at…

A: According to the Kirchhoff\'s law, enthalpy at two different temperatures can be related as:

Q: What is the change in internal energy of the system (ΔU) if 65 kJ of heat energy is evolved by the…

A: As heat energy is evolved by the system, q will be -ve q=-65 kJ As work is done on the system, w…

Q: Q3/ Choose A or B (10 Marks) A/ How many types of thermodynamic systems, explain with the help of a…

A: a)here are three types of systems in thermodynamics: open, closed, and isolated. An open system can…

Q: Consider the thermodynamic quantities E, 9, and w. Which of these quantities are state functions?

A: Examples of state functions ΔΗ,-ΔG ,ΔΤ Examples of path functions - work (w) - heat (q)…

Q: Discuss the First and Second laws of thermodynamics with suitable examples and justification.

A: A question based on Thermodynamics, which is to be accomplished.

Q: For the process: 4 Al(s) + 3 O2(g) → 2 Al2O3(s), AH = -3352 kJ. What is the value, in kJ/mol, for…

A: The concept: First, you have to find for how many moles of Al(s), the delta H is provided in the…

Q: 2. 22.5 g of Zn (Cp = 0.387 J/g°C) is heated to the boiling point of water, then added to 25 mL of…

A: Mass of zinc (m) = 22.5 g Specific heat capacity of zinc (s) = 0.387 J/goC Initial temperature of…

Q: Given that the standard enthalpy of formation of HI(aq) is −55 kJ mol−1, what is the value of…

A: Given that: Standard enthalpy of formation of HI = -55 KJ mol-1 ∆fH° I-,aq= ? The reaction will be,…

Q: What is AG (in kJ) for 2 SO2(g) + O2(g) – 2 SO3(g) at 700 K, under standard conditions of 1 bar…

A: Given :-  2SO2(g) + O2(g) →2SO3(g)  K = 3.0 × 104  T = 700 K  To calculate :- ∆G (in kJ)

Q: a) Given that AgNO3 is -124.4 kJ/mol, at standard conditions, what is dH when 56g of AgNO3 (M =…

A: The chemical reaction in which the energy is needed for the reaction then the reaction will be the…

Q: 127 J of work to the s. What is the chang rgy of the system?

A: According to the question, a system releases 235 J of heat while performing 127 J of work to the…

Q: () What are the thermodynamlc quantitles of a system that affect the amount and sign of the Internal…

A: a. i. The thermodynamic quantities of a system that affect the amount and sign of the internal…

Q: What is the standard enthalpy for a reaction (J/mol) for which the equilibrium constant is 2 times…

A: