DETERMINATION of HEAT of SOLUTION by SOLUBILITY METHOD Experimental data are given as follows, related to the temperature dependence of the solubility of ammonium nitrate in water under constant pressure. Using the equation that obtained by taking the integral of Van't Hoff equation, calculate the heat of solution, AHs by analytically 20 40 60 T(°C) S (g/100cm') 150 297 410

DETERMINATION of HEAT of SOLUTION by SOLUBILITY METHOD Experimental data are given as follows, related to the temperature dependence of the solubility of ammonium nitrate in water under constant pressure. Using the equation that obtained by taking the integral of Van't Hoff equation, calculate the heat of solution, AHs by analytically 20 40 60 T(°C) S (g/100cm') 150 297 410

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 8P

See similar textbooks

Similar questions

Iron pyrite is often called “fool's gold” because it looks like gold (see page 11). Suppose you have a solid that looks like gold, but you believe it to be fool's gold. The sample has a mass of 23.5 g. When the sample is lowered into the water in a graduated cylinder (Study Question 63), the water level rises from 47.5 mL to 52.2 mL. Is the sample fool's gold (d = 5.00 g/cm3) or “real” gold (d = 19.3 g/cm3)?
Calculate the percent volatility of the solids given that an empty container weighs 15.7g. A sample from the aeration tank is put in the container. At temperature 104 degC , the container now weighs 21.2211g. It was further heated in a furnace with a temperature of 540degC and gained a constant weight of 20.5057.
The sulfur dioxide (SO 2 ) stack gas concentration from fossil fuel combustion is 2 ppmv. Determine the stack gas SO2 concentration in units of ug/m 3 . Assume 0°C and 1 atm pressure.
Derive the relation for adiabatic compressibility for ideal gas.
Determine the pH of the solution produced in the reaction flask when 25.00mL of 0.100 M NaOH has been added to 25.00 mL of 0.100 M HCl
The aluminum tube AB of cross section has a fixed support on the base and is supported by a pin at the top of a horizontal beam supporting a load Q = 200 kN. Determine the required thickness t of the tube if its outside diameter for 100 mm and the necessary safety factor in relation to Euler buckling for n = 3.0 (assuming A = 72 GPa). I know the answer, but I cannot understand the critical charge formula. I don't know why to use the constant 2.046 in the formula, can you please show me?
Calculate the temperature of 0.39 mole of Xenon gas that occupies 9850 millimeters under a pressure of 631 torr.
The following information is given for n-pentane at 1 atm:boiling point = 36.20°C ΔHvap (36.20°C) = 357.6 J/g melting point = − 129.7°C ΔHfus (−129.7°C) = 116.7 J/g specific heat gas = 1.650 J/g ⋅ °C specific heat liquid = 2.280 J/g ⋅ °C A 26.10-g sample of liquid n-pentane is initially at −51.40°C. If the sample is heated at constant pressure (P = 1 atm), how many kJ of energy are needed to raise the temperature of the sample to 65.30°C?
We propose an experimental activity that will allow you to do something similar to what is done in the salt flats. Suppose you have a mixture of salt and chalk and you want to separate its phases. Can you think of how to do it? Materials: pieces of chalk, coarse or fine salt, water, a transparent heat-resistant container, a spoon, a heat source (lighter or heater).Solution: Mix equal amounts of salt and chalk in the container. In this way, you will have obtained the heterogeneous system with which you are going to work. Add water and stir with the spoon. Let stand.a) What happened?b) How do you explain what you observed?Two processes have occurred:the dissolution of the salt and the sedimentation of the chalk.Both the chalk and the salt are still present, only the salt is not visible because it is dissolved in the water. The identity of each of the materials was not affected: we say that physical changes have occurred in the system. The materials that constituted the initial…
A gate oxide is grown in 640 torr of water vapour at 1050o C. The oxide is grown on a bare (100) silicon wafer. The oxidation time is 2 mins. i) Assuming the tau (τ) value is zero, use the Deal–Grove model to predict the oxide thickness. Do not use design curves. For simplicity, when estimating B and B/A, assume the values are a linear function of temperature, rather than the actual exponential function. ii) When this process is run, the measured oxide thickness is 0.1 µm, but the oxidation rate after 2 mins agrees with the B/A ratio. Find the value of τ that should be used for these process conditions to allow for the initial rapid growth regime
Choose the correct answer How can relatively denser object be made to float on the less dense fluid? * a-By altering the shear forces acting on the object b-By altering the shape. c-By altering the forces acting on the object d-None of the mentioned
Use the psychrometric chart for the following questions unless asked to “calculate”, in which case you must use the appropriate calculations. 1. Calculate the enthalpy (H in kJ/kg) of an air/water vapour mixture which is at 25oC and 0% rh (i.e. dry air). 2. Check your result from question 1 with the psychrometric chart. Are they the same? 3. Now calculate the new enthalpy of the same air/water vapour mixture after raising the rh to 50% (still at 25oC). 4. Check your result again with the psychrometric chart. Are they the same? 5. How much water vapour had to be added to it to raise the rh to 50%? 6. Without changing the enthalpy (i.e. an adiabatic process), how much more water vapour could the air/water vapour mixture from question 4 hold before becoming saturated? 7. What is the new temperature of the air/water vapour mixture of question 5 at saturation? (See over for #8) Timusk 2007 8. Calculate the January ventilation cost for a typical leaky old Toronto house measuring 5m wide x…