Compute the entropy change for vaporization

Assignment Help Chemistry
Reference no: EM13162539

Calculate the entropy change for vaporization of 18 g of H2O. The molar enthalpy of vaporization for water is 44 kJ/mol and the boiling point is 100 oC. A) 44 kJ/mol B) 440 J/K C) 117.9 J/K D) -41 kJ/K E) -440 kJ/K

Reference no: EM13162539

Questions Cloud

How many grams of zinc must react with sulfuric acid : how many grams of zinc must react with sulfuric acid in order to obtain 500mL of hydrogen at 20 deg c and 770 mm hg?
Compute the heat of reaction : The first step in the industrial recovery of zinc from zinc sulfide ore is roasting, that is, the conversion of ZnS toZnO by heating: calculate the heat of reaction
what is the total pressure in a cannister : what is the total pressure in a cannister that contains oxygen gas at a partial pressure of 804 mm Hg, nitrogen at a partial pressure of 220 mmHg, and hydrogen at a partial pressure of 445 mmHg.
Calculate the ph of the above mixture : b. Would the pH increases or decreases if the solution is disturbed by adding HBr?
Compute the entropy change for vaporization : Calculate the entropy change for vaporization of 18 g of H2O. The molar enthalpy of vaporization for water is 44 kJ/mol and the boiling point
What is crusoe island giving up in order to produce one unit : What is Crusoe Island giving up in order to produce one unit of fish and what is Yakamay Island giving up in order to produce
Calculate the mass of propylene glycol required to replace : To obtain the same antifreeze protection requires 76g of propylene glycol to replace each 62g of ethylene glycol. Calculate the mass of propylene glycol required to replace 7.00gal of ethylene glycol. The density of ethylene glycol is 1.12 .
What is the average thickness of the sheet in meters : If a 210 mg piece of gold (density =19.32 g/cm^3 ) is hammered into a sheet measuring 2.5 x 1.0 ft , what is the average thickness of the sheet in meters?
What is the final temperature of the mixture : If 50.0 of ethanol (density 0.789g/mL) initially at 6.0 is mixed with 50.0 of water initially at 28.2 in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture?

Reviews

Write a Review

Chemistry Questions & Answers

  What is the final concentration

54.0 mL of a 1.40 M solution is diluted to a volume of 218 mL. A 109-mL portion of that solution is diluted using 183 mL of water. What is the final concentration.

  Determines what is the silver ion concentration

Using a solution prepared by adding 467 mL of 0.400 M silver nitrate with 421 mL of 0.503 M sodium phosphate then determines what is the silver ion concentration in? Ksp of silver phosphate = 2.8 × 10-18

  State when the system comes to equilibrium

A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol CO, 0.43 mol of H2O and some graphite

  Explain what exactly is the reduction of alkynes

What exactly is the reduction of alkynes? I just understand that it is a method for synthesizing alkenes. Why are the leaving groups for E2 reactions not as good as E1 reactions?

  Determine the identity of the element

can you find out the name and formula of the unknown compound and determine the identity of the element?

  De-broglie equation in electromagnetic specra

Uses of de-Broglie equation in electromagnetic specra - Find the mass of oxygen and decomposed potassium chlorate along with the pressure in the glass bulb.

  What is the mass of sodium ion circulating in the blood

What is the mass of sodium ion circulating in the blood if the concentration of sodium ion in this individual is 0.135M.The average adult has a total blood volume of 5 liter.

  What is the heat capacity of the calorimeter

At constant volume, the heat of combustion of a particular compound is -3973.0 kJ/mol. When 1.481 g of this compound (molar mass = 172.71 g/mol)

  How much heat would be absorbed or released

The enthalpy of fusion of methanol is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol

  How much energy (kj) is required

At 1 atm, how much energy (kJ) is required to heat 65.0 g of H2O(s) at -20.0 degrees C to H2O(g) at 135.0 degrees C?

  Explain why do we need to excess fcr

why do we need to excess FCR? Also give 3 reasons why gallic acid is used as standard for the total phenolic assay?

  What is the new pressure

the pressure of a sample of helium in a 1.00-liter container is .988 atm. What is the new pressure if the sample is placed in a 2.00 L container?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd