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Category > Chemistry Posted 15 May 2017 My Price 12.00

photosynthesis

7) 6 CO2 + 6 H2O + Energy → C6H12O6 + 6 O2  

In this photosynthesis that occurs in plants, is ΔH positive or negative?

a.positive

b.negative

38) Consider the reaction H2 (g) + Br2 (l) → 2 HBr (g).

  1. Which would you predict to be spontaneous based only on â–³S, the first reaction given or the reverse reaction?
  2. a.The first reaction is more likely to be spontaneous.
  3. b.The reverse reaction is more likely to be spontaneous.
  4. c.Neither of them is spontaneous. 

39) Is the entropy, â–³S, positive or negative for the following process?

Assembling a jigsaw puzzle.

40)Does the entropy (â–³S) increase or decrease in each of the following processes?

  1. The wind blows a pile of leaves all over the yard. 
  2. As you are pumping gas into your car, gas fumes escape into the air.

41)What is the molarity of a solution in which 175 grams of KCl are dissolved in 1.00 L of solution?

44)Calculate the freezing point of a solution made from 94.0 grams of sucrose, C12H22O11, dissolved in 300 grams of ethanol.

45) Calculate the boiling point of a 2.00 molal solution of magnesium perchlorate, Mg(ClO4)2, in water.

Answers

SuperTutor
(15)
Status NEW Posted 15 May 2017 12:05 AM My Price 12.00

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