Chem 162 exam 2 - Study guides, Class notes & Summaries

Chem 162 Exam 2 with complete solution

Vapor Pressure is a form of Dynamic Equilibrium Molecules are constantly moving between phases, but the rate at which the molecules move from the liquid ↔ gas phase is constant Chemical Equilibrium a state in which the rate of a forward reaction and the rate of the reverse reaction are the same as the reaction uses its reactants the forward reaction starts to slow down How is chemical equilibrium reached? reactants and products are still forming when it is reached, just at th...

Chem 162 Exam 2 (In-Class) Practice Problems with complete solution

a) When Na metal reacts with water 368.6KJ of energy is evolved sulfur (S8) burns in air to produce sulfur dioxide, reaction evolves 9.31KJ of heat per gram of S8, write the thermalchemical equation. b) the dissociation of 1 mol sulfur dioxide in elements c) you burn 15.0g of S8 in air. How much heat evolves for this amount of sulfur : a) -2.39x10^-3 KJ/mol b) +299KJ c) -1.40x10^2 KJ/mol How many grams of glucose needed per day? (C6H12O6) Man: 67KJ is 1.3x10^4 KJ Woman: 58KJ is 8.8x1...

Chem 162 Exam 2

Chem 162 Exam 2

Chem 162 Exam 2 with complete solution

exothermic reaction correct answers a chemical reaction that releases energy to its surroundings "Heat" is best described as correct answers the energy transferred as a result of a temperature difference endothermic reaction correct answers A reaction that ABSORBS energy in the form of heat Iodine Vapor depositing on a cool surface correct answers exothermic water condensing on a cold glass correct answers exothermic propane burning correct answers exothermic dry ice sublimin...

CHEM 162 FINAL WXAM QUESTIONS AND ANSWERS, LATEST UPDATED 2024/2025 (GRADED) Which one of the following nuclear reactions is not correct? A. 226 88Ra → 222 86Ra + α B. 63 28Ni → 63 29Cu + βC. 11 C → 11 B + β+ D. 14 C → 14 N + βE. 14 7N + 1 0n → 14 C + 1 1p A. Correct. 22688Ra → 22286Ra + 4 α B. Correct. 6328Ni → 6329Cu + 0 -1e C. Not correct. 11 C → 11 B + 0 e 3 6 7 -1 6 D. Correct. 14 C → 14 N + 0 e E. Correct. 147N + 1 0n → 14 C + 1 1p CHEM 162...

Exam 2 Summary on Chapter 15 to 17 ; topics of equilibrium, reaction rates, acid & base, and calculations