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Ratio of specific heats of CO2 at 825K?
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- Let temperature in 3-space be given by T(x, y, z) = x2 - y2 - z.Draw isotherms corresponding to temperatures T = -1, 0, 1.Extintion coeficient for Y is 1280A fuel has the following volumetric analysis: CH4 = 68% C2H6 = 32% Assume complete combustion with 15% excess aur at 101.325 kPa and 27 degrees dry bulb temperature. What is the total moles in the products of combustion?
- A student determines the molar mass of a liquid unknown by the method used in thisexperiment. She found that the equilibrium temperature of a mixture of ice and water was1.0°C on her thermometer. When she added 12.3 g of her unknown sample to the mixture, thetemperature, after thorough stirring, fell to -4.0°C. She then poured off the solution through ascreen into a beaker. The mass of the solution was 93.4 g. Kf = 1.86°C/m What was the molality of the unknown solution? ______________ m How much unknown liquid was in the decanted solution? ______________ gHow much water was in the decanted solution? ______________ gWhat did she find to be the molar mass of the unknown liquid, assuming she made thecalculation properly?______________ gThe difference between heats of reaction at constant pressure and constant volume for the reaction:2C6H6(l) + 15O2(g) = 12CO2(g) + 6H2O(l) at 298K in kJ isA. -7.43 kJB. 3.72 kJC. -3.72 kJD. 7.43 kJFor the dissolution of LiCl in water, ΔHsoln = -37 kJ/mol.Which term would you expect to be the largest negativenumber: ΔHsolvent, ΔHsolute, or ΔHmix?
- Determination of enthalpy of neutalisation Ccal=20 J/°C Volume of HCl = 150 ml Initial temperature of HCl = 30 °C Volume of NaOH = 149 ml Initial temperature of NaOH = 30 ° C Final Solution Temperature = 45 °C Moles of H+ = .220 mol Moles of OH- = .221 mol Limitng reagent = OH- Heat transfer of solution = ___________|Kj Enthalpy of neutralisation per mole of limiting reagent = _____________________|kj/ mol3 Calculate ∆G for the process during which 10 mmol He(g) which initially occupies a volume of 500 cm3, expands isothermally to a final volume of 5 dm3 at 298.15 K.Calculate the flow rate of benzene that can be heated from 25.0°C to 80.0°C by heat exchange with 100 kg/hr of saturated steam that condenses at 100°C. Assume that the average specific heat capacity of benzene from 25°C to 80.0°C is 142.94 J/mol*K.