The constant-volume heat capacity of a gas can be measured by observing the decrease in temperature when it expands adiabatically and reversibly. The value of γ = Cp/CV can be inferred if the decrease in pressure is also measured and the constant-pressure heat capacity deduced by combining the two values. A fluorocarbon gas was allowed to expand reversibly and adiabatically to twice its volume; as a result, the temperature fell from 298.15 K to 248.44 K and its pressure fell from 202.94 kPa to 81.840 kPa. Evaluate Cp and Cv

Q: A sample of 4.50 g of methane occupies 12.7 dm³ at 310 K. (a) Calculate the work done when the gas…

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Q: How much work is done in blowing up a balloon from zero volume to a volume of 6.7 L, assuming that p…

A: The question is based on concept of chemical thermodynamics.We need to calculate work done in the…

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: 1.00 mole of an ideal diatomic gas (for which Cp = 7R/2) is heated from 250.0 K to 297.5 K while…

A: n = moles of gas R = gas constantT1 = initial temperatureT2 = final temperatureCp = heat capacity at…

Q: An ideal monatomic gas expands adiabatically from 0.500 m3 to 1.57 m3. If the initial pressure and…

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Q: 2) Consider 0.910 mol of an ideal diatomic gas that undergoes the described thermodynamic cycle: •a…

A: Given the moles of diatomic gas, n = 0.910 mol The given data for state-a is not sufficient to find…

Q: The enthalpy of a system is given by the equation H=U+PV where U is the internal energy, P=pressure,…

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Q: Consider two 50.0 mL volumes of water, one at 20.0 °C and the other at 100.0 °C. What is the heat…

A: Given, Volume of water in two separate Container = 50 mL Temperature of one of the water = 20◦c…

Q: a) A 1.60 dm3 sample of a mixture of methane gas, CH4 and oxygen gas, measured at 25 oC and 101 kPa,…

A: it is thermodynamics problem. combustion means complete oxidation of one mole of substance.

Q: A calorimeter is a well insulated container that can be used to measure heat changes in a process.…

A: Heat capacity is equal to the amount of heat required to raised the temperature by 1oC of 1g of…

Q: Determine the difference between the molar heat capacity of iron at constant pressure and that at…

A: The energy required to enhance the temperature by 1 Kelvin (for 1 mole of a substance) is termed as…

Q: Calculate the final temperature of a sample of argon of mass 12.0 g at 273.15 K that is expanded…

A: The objective of the question is to calculate the final temperature of a sample of argon during…

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: 8. Three moles of a monoatomic perfect gas are allowed to expand isothermally at 298 K from 0.01 m3…

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Q: In the isothermal reversible compression of 89.3 mmol of a perfect-gas at 317. K, the volume of the…

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Q: The molar constant-volume heat capacity of 79.9 g Ar gas was found to vary with temperature…

A: Given , Argon gas  mass =79.9 g moles of Ar: =79.9 gmolar mass of Ar =79.9 g39.94 g/mol=2.00 mol…

Q: Assume N₂ behaves as perfect gas. It expands reversibly and adiabatically from Vi to Vf with the…

A: Answer: It is a type of process that takes place in an isolated system, so that there is no exchange…

Q: EX/ A sample of argon (molar mass 39.9 gmol) of mass 6.56 g occupies 18.5 dm' at 305 K. (a)…

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Q: A sample consisting of 3.5 moles of a perfect gas at 350 K and 1.25 atm undergoes reversible…

A: The reversible adiabatic process is often referred to as the isentropic process. It is an ideal…

Q: 3.79 g of a gas (66.3 g mol-1) was dissolved in liquid water in a calorimeter with a calorimeter…

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Q: What is the reversible work, in joules, for the expansion of 2.50 mol of an ideal gas from 4.7 bar…

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Q: You have a gas held isothermally at 297 K whose volume changes from 0.2 m^3 to 9.0 m^3, what is the…

A: Various processes take place in thermodynamics. These processes occur under specific conditions.…

Q: If heat flows from the surroundings, Q > 0. True False Energy is an extensive state property of the…

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Q: Derive an expression for the work done during an isothermal, reversible expansion of a gas that…

A: Answer: Given equation of state for the gas is: P=RTVm-b Here: P=pressure of the gasR=universal gas…

Q: What is the difference between internal energy and enthalpy? Under what  conditions will they become…

A: Answer of this question :- Enthalpy :- it is the heat energy that is being absorbed or evolved…

Q: onsider a system c onfined to a cylind diabatically against

A: According to the question, a system consisting of 1.5 mol CO2(g) initially at T= 15 C and P = 9.0…

Q: One mole of N2(g) occupies 5 L of volume at 300 K in a sealed cylinder. The gas behaves ideally in…

A: in isothermal process temperature is constant throughout the process.

Q: Calculate (1) 4S for the system and its surroundings involved in the reversible isothermal expansion…

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Q: A 2.5 moles sample of perfect gas at 35.6°C is isothermally expanded from 30.0 dm³ to 70.0 dm³. (a)…

A: It is given that, Number of moles = n= 2.5 moles  Temperature = T = 35.6oC = (35.6+273.15)K = 308.75…

Q: We can calculate the heat capacity (C) of the calorimeter by measuring the change in heat qcal and…

A: The term heat capacity can be defined as the physical property of the given matter which is equal to…

Q: What is the work involved for every mole of C(g) in ideal conditions in kJ at 298 K given enthalpy…

A: Using  relationship between enthalpy and internal energy. ∆H= ∆E+P∆V ∆H=∆E-w  At constant…

Q: Two moles of an ideal gas are expanded reversibly and isothermally at 0 °C from 1 atm. Calculate the…

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Q: Calculate the temperature change of imole of a perfect diatomic gas contained in a piston. q = 65J…

A: Given,  The gas is dia atomic  Number of moles = 1 mol  q = 65 J  w = 210 J

Q: Calculate the heat capacity of the calorimeter used, when burning 0.31 g of benzoic acid (Mw=122.1…

A: Given,Mass of benzoic acid = 0.31 gTemperature change of the calorimeter = 1.60 degreesThe molar…

Q: A sample of 2.2 mol CO2(g) is originally confined in 15 dm3 at 280 K and then undergoes adiabatic…

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