Q.30 A sample of 2.0 moles of O2(g) (assumed ideal) at 500 K is expanded from 5 L to 50 L under adiabatic and reversible conditions. The change in its internal energy (in kJ) is close to (R = 8.3 JK-l mol-1: Cy m= 5 R)

Q: sample of methane of mass 4.50 g occupies 12.7 L at 310 K. (a) Calculate the work done when the gas…

A: Given information: Mass of methane = 4.50 g Volume = 12.7 L Temperature = 310 K External pressure =…

Q: A 5.00 mol sample of an ideal gas is compressed irreversibly and isothermally m an initial volume of…

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Q: 8.) A container holds 15 L of 3.00 mol of diatomic gas at a pressure of 8 atm and 298 K. If the gas…

A: 8) Given that, for an adiabatic reversible expansion process, The initial volume is V1 = 15 L, The…

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

A: The change in enthalpy at 1500K is 46.640675 KJ mol-1 K-1.

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: Benzoic acid, 1.68 g, is reacted with oxygen in a constant volume calorimeter to form H₂O(l) and…

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Q: the following chemical equation:                  CH4 (g)   +   2 O2 (g)        CO2 (g)  +  2H2O…

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Q: A 20.2 g quantity of neon changes temperature from 30oC to 160oC at constant pressure. Assuming neon…

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Q: The molar heat capacity for carbon monoxide at constant volume is ??, ?=20.17 J/(K·mol)CV, m=20.17…

A: Volume V = 9.00 L  Pressure P = 9.00 kPa = 9000 Pa  Initial Temperature Ti  = 25.0 degree C  Final…

Q: When 3.0 mol 0 2(g) is heated at a constant pressureof 3.25 atm. its temperature increases from 260…

A: The molar heat capacity indicates the amount of heat which is required to raise the temperature of 1…

Q: a) For the combustion of liquid ethanol, what is the ΔH of that reaction at 298 K, 1 atm? b)…

A: The combustion reaction of liquid ethanol is represented as: C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(l)…

Q: For nitrogen gas the values of C, and C at 25°C are 20.8 J K-¹ mol-¹ and 29.1 J K-¹ mol-¹,…

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Q: Q) When 3.0 mol O2 is heated at a constant pressure of 3.25 atm, its temperature increases from 260…

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Q: The pressure of an ideal monatomic gas at 298 K is 1.25 atmospheres. The volume of this gas expands…

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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: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol' K-1. How much heat in cal is…

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Q: The normal boiling point of liquid ammonia is 240 K; the enthalpy of vaporization at that…

A: The temperature at which a liquid boils and its phase changes into vapor is known as its boiling…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol1 K-1. How much heat in cal is…

A: Molar heat capacity at Constant pressure ; Cp = 6.97 cal mol-¹ k-¹  Mass of CO2 = m = 0.59 g…

Q: A 0.500 mole sample of CO(g) is combusted in a constant pressure calorimeter to CO2(g). The…

A: Heat Capacity of a substance is the amount energy required to raise the temperature by 1.C. C=q∆T q=…

Q: The enthalpy for the combustion reaction of solid cysteine, C3H7NO2S, resulting in the gases CO2,…

A: Answer: This question is based on first law of thermodynamics according to which: ∆U=∆H-∆ngRT Here:…

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

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Q: When 3.93 moles of a liquid with a heat of vaporizations of 27.7 k) mol-1 is vaporized at 290 K and…

A: Given: Moles of liquid = 3.93 mol. Heat of vaporization of liquid = 27.7 KJ/mol. Pressure = 105 KPa…

Q: 21.7 g of a basic solution was mixed with 87.6 g of water in a calorimeter with a calorimeter…

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Q: 13. If 0.912 g of vaniline (CHO,) is burnt in a bormb calorimeter, the temperature of the…

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Q: 1. A certain ideal gas whose R = 278.6 J/kg.K and cp =1.015 kJ/kg.K expands isentropically from 1517…

A: In isentropic process, entropy remains constant. It is reversible adiabatic process.  Given values…

Q: A 4.580 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter…

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Q: The fuel in high-efficiency natural-gas vehicles consists primarily of methane 1CH42. (a) How much…

A: The reaction for the burning of methane is given below. CH4  +  2O2  →  CO2  +  2H2O At 298 K,…

Q: 1. A 0.5 mole of gas at temperature 300 K expands isothermally from an initial volume of 2 L to 6 L…

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Q: 33.45 grams of solid ammonium chloride is dissolved in the calorimeter and the temperature goes from…

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Q: Hydrogen sulfide gas is compressed from an initial state of 400 K and 2 bars to a final state of 598…

A: Given:  Initial pressure = 2 bars  Final pressure = 36 bars  Initial temperature = 400 K  Final…

Q: 4. When 2.5 mol CO2 is heated at a constant pressure of 1.25 atm, its temperature increases from 250…

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Q: A 3.50 mole sample of an ideal gas with Cv= 3R/2 undergoes reversible expansion. The initial…

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Q: (a 7. A 5.00 mol sample of an ideal gas is compressed irreversibly and isothermally at 150.00 K from…

A: Work done in an irreversible and isothermal compression is calculated as: W=-nRTPext1P2-1P1…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

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Q: Find the internal energy of 30 g of Argon gas (Ar) at 90°C. (Molar mass of Argon; Mr = 40 g mol-1,…

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Q: 2. Methylhydrazine (N2H3CH3) is common liquid propellant used in rocket fuels. Look for the standard…

A: For, the given reaction; 4N2H3CH3 (l) + 5N2O4 (l) ---->12H2O(g) + 9N2(g) + 4CO2(g)  Substance…