Chemistry Homework Help

24/7 Chemistry Homework Help

Get step-by-step solutions from expert tutors.

How it works?

Ask a question

Type, take a picture, or paste your question with all necessary details to ensure high-quality responses.

Get an answer in less than 24hrs

Once our tutors receive the question, they'll begin. You'll get an email once the solution is ready.

Get Notified

We will send you email and text notification to let you know when your question is answered.

Browse Homework Solutions

94 solutions

Entropy

Q. Which of the following processes has a ΔS > 0? SO2 (l) → SO2 (s) N2(g) + 3 H2(g) → 2 NH3(g) CH4(g) + H2O(g) → CO(g) + 3 H2(g) K2CO3(s) + H2O(g) + CO2(g) → 2 KHCO3(s) All of these processes have a ΔS > 0.

Solved • Aug 8, 2019

Entropy

Q. Which Sample has greater entropy? * 1 mole of NaCl(s) or 1 mole of HCl(g) at 25 oC * 2 mol of HCl(g) or 1 mol of HCl(g) at 25 oC * 1 mol of HCl(g) or 1 mol of Ar(g) at 298 K

Solved • Aug 4, 2019

Entropy

Q. State whether ΔS is positive, negative or zero for the following processes: (a) A piece of ice goes from -30 C to -5 C at constant pressure. (b) 2 NO(g) + O2(g) --> 2 NO2(g) at 25 C and 1 atm (c) 4 Fe(s) + 3 O2(g) --> 2 Fe2O3(s) at 25 C and 1 atm

Solved • Aug 4, 2019

Entropy

Q. Which of the following states has the greatest entropy? a. 2H2(l) + O2(g) b. 2H2O(l) c. 4H(g) + 2O(g) d. 2H2O(s) e. 2H2(g) + O2(g)

Solved • Jul 25, 2019

Entropy

Q. QUESTION 3 Answer this question without using numbers from the book (Or anywhere else!) AS for the following reaction is positive. True or false? H2(g) +12(5) =;.., 2 HI(g) 1. True 2. False

Solved • Jul 22, 2019

Entropy

Q. QUESTION 4 Calculate the standard entropy change for the following reaction, 2 S02(g) - 02(g) 2 S03(g) given SIS02(g)] = 248.2 J/K.mol, S102(g)] = 205.1 J/K • =I, and SIS03(g)] = 256.8 J/K • mol -196.5 J/K -94.0 J/K -187.9 J/K -187.9 J/K ,196.5 J/K

Solved • Jul 22, 2019

Entropy

Q. 1 mole of Ca metal has a greater entropy than 1 mole of Ba metal. True or false 1. True 2. False

Solved • Jul 22, 2019