Evaluate the change in entropy of water

Assignment Help Chemistry
Reference no: EM13493662

Calculate the change in entropy (in J/K) when 81.8 g of water is heated from 27.9 ºC to 87.8 ºC at 1 atm. (The specific heat is 4.184 J/(g-K).)

Reference no: EM13493662

Questions Cloud

Describe e2 conditions draw arrows : provide mechanism for trans-1-bromo-2-methylcyclohexane rxn under e2 conditions draw arrows. why is the product different from e1?
Explain what is the partial pressure of he : A 2.48 L sample of He at 739 torr is mixed with 6.08 L of Ar at 325 torr both at 25°C is placed in a 4.80 L container at 25°C. What is the partial pressure (atm) of He? a) 0.48 b) 0.54 c) 0.42 d) 0.50 e) 0.38
Model predictive control with shell standard control problem : Design Model Predictive Control on Shell Control Problem - strongly interactive and there are a great number of input as well as outputs. PID controller could do the good job for controlling the process but Model Predictive Controller could definit..
Explain a hydrogen atom absorb a photon with the longest : For which of the following transitions would a hydrogen atom absorb a photon with the longest wavelength? a) n=1 to n=2 b)n=2 to n=4 c) n=5 to n=1 d) n=7 to n=6 e) n=5 to n=6
Evaluate the change in entropy of water : Calculate the change in entropy (in J/K) when 81.8 g of water is heated from 27.9 ºC to 87.8 ºC at 1 atm. (The specific heat is 4.184 J/(g-K).)
Evaluate the increase of entropy : Calculate the increase of entropy (in J/K) when 72 g of ice melts at 0 ºC and 1 atm. (The heat of fusion for ice is 6,000 J/mol.)
How transitions in a hydrogen atom would emit : Which of the following transitions in a hydrogen atom would emit the highest energy photon? a) n=1 to n=2 b) n=3 to n=2 c) n=5 to n=1 d) n=2 to n=8 e) n=6 to n=5
How fast is she going just before she lands : An extreme skier, starting from rest, coasts down a mountain that makes an angle 25.0° with the horizontal. How fast is she going just before she lands
Explain vessel was initially filled with pure nobr : Consider the following reaction (assume an ideal gas mixture). 2NOBr(g) ? 2NO(g) + Br2(g) A 3.0-L vessel was initially filled with pure NOBr, at a pressure of 3.6 atm, at 300 K. After equilibrium was reached,

Reviews

Write a Review

Chemistry Questions & Answers

  When 2 moles of mg3n2 are allowed to react with water to

when 2 moles of mg3n2 are allowed to react with water to form ammonia gas and magnesium oxide how many moles of h2o are

  What is the ph of the solution

what is the ph of the 0.20 M NH3/0.20 M NH4Cl buffer after the addition of 10.0 ml of 0.10M HCl to 65.0 ml of the buffer.

  A 350 g sample of a biomolecule was dissolved in 150 g of

a .350 g sample of a biomolecule was dissolved in 15.0 g of chloroform and the freezing point depression was determined

  State what is the empirical formula of the compound

An unknown compound has a forula of CxHyOz. You burn 0.1523 g of the compound and isolate 0.3718 g of CO2, and 0.1522 g of H2O. What is the empirical formula of the compound?

  What are the advantages of the stock system

What are the advantages of the Stock system of nomenclature over the former one?

  Define how many grams of hydrogen gas

if 6.795 g of alum was produced using the method in this experiment, how many grams of hydrogen gas could theoretically have been produced

  How to evaluate the ph of the solution

A buffer is prepared by mixing 161 mL of 0.193 M NaOH with 695 mL of 0.687 M sodium bicarbonate (NaHCO3). Given that the Ka1 of H2CO3 is 4.5 x 10-7 and the Ka2 is 4.7 x 10-11, calculate the pH of the solution.

  Define the molecular weight of the solute

A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.

  Explain what is the molarity of a sodium chloride solution

What is the molarity of a sodium chloride solution, if 6.62 g of NaCl are dissolved in enough water to make

  How many molecules of acetylene react with oxygen

How many molecules of acetylene (HCCH) react with 123 molecules of oxygen to produce carbon dioxide and water.

  Define a balanced chemical equation for the reaction

Which of the available reagent(s), if any, will oxidize Fe(s) while leaving Cu(s) unreacted? If none of the available reagents can be used for this purpose, then identify another reagent from the table that could be used. For each reagent you've i..

  Explain potassium chlorate decompose to passium chloride

How many grams of Potassium Chlorate decompose to passium chloride and 638mL of O2 at 128 degrees C and 752 Torr. 2KClO3 (s) => 2KCl (s) + 3O2(g)

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