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31.- The molar heat capacity of water vapor at a constant pressure of 1.0 atm is...
The molar heat capacity at constant pressure for water vapor varies with temperature according the equation: Cp / J.K mol-1 = 30.54 + 0.0103T/K Calculate the first law parameters (w, q, ΔU, and ΔH) when one mole of water vapor behaving as an ideal gas is heated at constant volume from 25° C to 200° C.
The temperature dependence of the molar heat capacity at constant pressure for Cl_2(g) in the temperature range from 298-800 K is: C_p, m(J mol^-1 K^-1) = 22.85 - 0.06543T - (1.2517 times 10^-4)T^2 + (1.1484 times 10^-7)T^3 Where T is the Kelvin temperature. Calculate the heat required to raise the temperature of 1.000 mole of Cl_2(g) from 300 K to 800 K.
The vapor pressure of water is 1.0 atm at 373 K, and the enthalpy of vaporization is 40.7 kJ mol-1 . At what temperature will the vapor pressure be 0.697 atm and at what temperature will the vapor pressure be 1.409 atm?
"Vapor Pressure of Water" assignment: VAPOR PRESSURE OF WATER INTRODUCTION All liquids exist in equilibrium with the vapor state. As temperature increases, this equilibrium shifts more and more in favor of the vapor until one reaches the boiling point, at which all liquid is converted to gas. The pressure exerted by the vapor over the liquid is known as its vapor pressure and is a function of temperature. Boiling occurs at the temperature at which the vapor pressure is equal...
The constant-pressure molar heat capacity of H2O (s) and H2O (l) is 75.291 J K−1 mol−1 and that of H2O (g) is 33.58 J K−1 mol−1 . Assume that the constant-pressure molar heat capacities are constant over the studied temperature range. Calculate the change in entropy of the system when 15.0 g of ice at −12.0 °C is converted to water vapour at 105.0 °C at a constant pressure of 1 bar!
a) What is the molar heat capacity of liquid water? J/mol oC (b) What is the heat capacity of 7.60 mol of liquid water? J/ oC (c) How many kJ of heat are needed to raise the temperature of 3.02 kg of water from 36.4 oC to 68.3 oC? kJ
The vapor pressure of liquid antimony is 400 mm Hg at 1.84x10' K. Assuming that its molar heat of vaporization is constant at 115 kJ/mol, the vapor pressure of liquid Sb is m m Hg at a temperature of 1.81x10' K.
1) The vapor pressure of liquid antimony is 400 mm Hg at 1.84×103 K. Assuming that its molar heat of vaporization is constant at 115 kJ/mol, the vapor pressure of liquid Sb is _____ mm Hg at a temperature of 1.81×103 K. 2) The normal boiling point of liquid acetone is 329 K. Assuming that its molar heat of vaporization is constant at 29.0 kJ/mol, the boiling point of CH3COCH3 when the external pressure is 1.21 atm is ______ K.
The vapor pressure of Y is 4.050 atm at 290K and 13.365 atm at 373K. What are the standard free energies of vaporization at the two temperatures? Hint: vaporization reaction is Y(I) = Y(g). «J/mol AG290º = AG373° = kJ/mol Assume that the standard entropy and enthalpy of vaporization of Y are independent of temperature and determine their values J/(mol-K) AS° = AH° = kJ/mol What is the normal boiling point of Y in degrees Celcius? 1 t= t =...
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...