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In which of the processes described below should the entropy increase? Choose ALL of the correct possibilities.
A) ice cubes melting at -5 oC and 1 atm pressureB) water disappearing from a tea kettle by boiling awayC) some dry ice left on a tabletop disappearing via sublimationD) formation of CH4(g) and O2(g) molecules from CO2(g) and H2O(l) at room temperature and 1 atm pressureE) water vapor in the atmosphere condenses into raindrops
There can be more than one answer. I choose D and it's wrong.
If the coal is burned in a power plant that uses 1800 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter.
what is the literature value for the Ksp of potassium hydrogen tartrate in water at 10, 22.5, 35, 50 degrees?
61.5 mL of 0.11 M sodium hydroxide were required to completely neutralize 23.7 mL of sulfuric acid. Calculate the concentration of the sulfuric acid solution
How many grams of potassium lactate (KC3H5O3) must be added to 114.0 ml of 0.5 M lactic acid in order to prepare a buffer solution at pH 3.1? The pKa of lactic acid is 3.8.
Report each to three significant figures in scientific notation. Given this data for the decomposition of urea in an acidic solution, calculate each of the following assuming Arrhenius behavior.
PH And Percent Ionization, 1. Determine the pH and the percent ionization in a 0.50M solution of KOBr. The Ka for HOBr = 2.5 x 10 ^ -9.
If 36 L of Hydrogen at 44 C and 94 kPa react with sufficient oxygen to produce water, what mass of water can be produced?
A gas mixture composed of helium and argon has a density of 0.605g/L at a 741mmHg and 298K .What is the composition of the mixture by volume?
If the absolute temperature of a gas is doubled, what happens to the root-mean-square speed of the molecules?
A mixture of gases contains 4.32 g of Ar, 7.88 g of BF3, and 4.86 g of N2. What is the partial pressure in atm of each component of this mixture if it is held in a 61.3-L vessel at 10.9 oC? Use R = 0.0821 L-atm/mol-K as the value of the gas consta..
Calculate q, and determine whether heat is absorbed or released when a system does work on the surroundings equal to 64 J and ?U = ?213 J.
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