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1 mole of liquid water at 0°C and 1 atm pressure is irreversibly converted into steam at 200°C and 3 atm. Assume the following: (i) liquid water has constant density of 1g/cm^3 and heat capacity Cp = 1 cal/gK. (ii) the heat of vaporization of water at 100°C IS 540 cal/g. (iii) assume that steam (otherwise an ideal gas) has a heat capacity given by
Cp = 8.81 - .0019T + .0000022T^2 (cal/K mol)
Calculate the Q, W, delta E, delta H and delta S for this process
256 grams of sodium chloride reacts with an excess of calcium oxide. How many grams of sodium oxide are produced?
A box contains 12600 red marbles and 885000 yellow marbles. What sample size is required to reduce the sampling standard deviation of red marbles to 1.85%?
170mL of O2 gas is collected over water at 25 degrees C and the total pressure is 742 mm Hg. The vapor pressure of water is 23.8 mm Hg at this temperature. What would the volume of the dry gas be at STP? ( hint Daltons Law and Combination Law are ..
It is desired to produce an iron-carbon allow that has a minimum hardness of 200 HB and a minimum ductility of 35% RA. Is such an ally possible? If so what its composition and microstructure? If this is not possible explain why.
Consider the Bohr Model for the hydrogen atom. Which of the following electron transitions releases the MOST energy. n = 6 to n = 4 n = 5 to n = 3 n = 4 to n = 2 n = 3 to n = 1 n = 2 to n = 1
How much heat was transferred from the tank? b) What is the final temperature of the tank contents? c) How much steam condensed, in kg? for a i found the difference in enthalpies but i cant figure out b, c
Calculate the entropy change that occurs when 3.5 moles of an ideal gas expands from 1.75 L at 20 degress Celsius to 8.46 L at .54 atm.
If 20.0 mL of 0.12 M cobalt(II) nitrate is reacted with 15.13 mL of 0.097 M sodium phosphate, which of the two reactants will be left over and which will be completely consumed.
the Na formed during the breakdown of NaN3 reacts with Fe2O3. How many grams of Fe2O3 are needed to react with 35.3 g Na?
What is the concentration (molarity) of the solution prepared by dissolving 1.83g of Co(NO3)2 in HCl acid to give a total volume of 100 mL
Calculate the minimum chloride ion concentration needed to initiate precipitation of PbCl2 from a solution that contains 0.01M Pb^2+ (aq).
Explain the following given for each statement in determining the sequence of peptide with concise (short) but complete response. you must state the specificity of each statement implication in determining the sequence of octapeptide
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