1420 Test 1 ANSWERS

1420 Test 1 ANSWERS - 1ANSWERS Test 1 CHEM 1420-001 1...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1ANSWERS - Test 1 - CHEM 1420-001 _____ 1. Consider the following data for the dimerization of A to form B, 2A B. Which of the following statements is true? (A) The equilibrium constant is less than 1. (B) The reaction is zero order. (C) The reaction is first order. (D) The reaction is 2nd order . (E) The equilibrium constant is 2. (F) The rate constant k cannot be determined. [A] Time, seconds 0.800 0 0.400 100 0.200 300 _____ 2. Consider the following data for the reaction X Y. Which of the following statements is true? (A) Equilibrium must have been reached already. (B) The rate constant must be zero order. (C) E a must be very small. (D) equilibrium might have been reached already . (E) The reaction must be catalyzed by platinum. (F) The reaction must be hetergeneous. [X] Time, seconds 0.800 0 0.800 100 0.800 300 _____ 3. The first order reaction helotropin isomerizing to isohelotropin shows 1.000 gram of helotropin reacting over 2500 seconds to form 0.5000 gram of isohelotropin. How long will it take for 2.000 gram of helotropin to form 1.000 gram of isohelotropin? (A) 1250 seconds. (B) 2500 seconds . (C) 5000 seconds. (D) 3333 seconds. (E) 750 seconds. (F) 1000 seconds. _____ 4. A catalyst functions by (A) decreasing the ΔH of the reaction. (B) increasing the ΔH of the reaction. (C) decreasing E a of the reaction . (D) increasing E a of the reaction. (E) stopping leChatelier's principle from acting. (F) changing the equilibrium constant of the reaction. _____ 5.Which is not true about an automobile catalytic converter? (A) It converts carbon monoxide to carbon dioxide. (B) It converts nitrogen and oxygen to nitrogen oxide . (C) it reduces atmospheric pollution. (D) it converts unburned fuel to carbon dioxide and water. (E) it
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 3

1420 Test 1 ANSWERS - 1ANSWERS Test 1 CHEM 1420-001 1...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online