Solution quiz2_pdf - pnp223 – Quiz 2 – VANDEN BOUT –(53585 1 This print-out should have 7 questions Multiple-choice questions may continue on

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

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: pnp223 – Quiz 2 – VANDEN BOUT – (53585) 1 This print-out should have 7 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points For the decomposition of ammonia to nitro- gen and hydrogen, the equilibrium constant is 1.47 × 10 − 6 at 298 K. Calculate the temper- ature at which K = 0 . 01. For this reaction, Δ H ◦ = 92 . 38 kJ · mol − 1 . 1. 332 K 2. 117 K 3. 241 K 4. 59 K 5. 390 K correct 6. 468 K Explanation: Use the van’t Hoff equation. 002 10.0 points What would be the expression for K c for the reaction 4 NH 3 (g) + 5 O 2 (g) ⇀ ↽ 4 NO(g) + 6 H 2 O(g) at equilibrium? 1. [NO] 4 [H 2 O] [NH 3 ] 4 2. [NH 3 ] 4 [O 2 ] 5 3. [NO] 4 [H 2 O] 6 [NH 3 ] 4 [O 2 ] 5 correct 4. [NH 3 ] 4 [O 2 ] 5 [NO] 4 [H 2 O] 6 5. [NO] 4 [H 2 O] 6 Explanation: To write K c for a balanced chemical reac- tion, multiply the concentrations of the prod- ucts divided by the same (multiply the con- centrations) for the reactants, each raised to its coefficient in the reaction.its coefficient in the reaction....
View Full Document

This note was uploaded on 03/22/2008 for the course CH 302 taught by Professor Holcombe during the Spring '07 term at University of Texas at Austin.

Page1 / 3

Solution quiz2_pdf - pnp223 – Quiz 2 – VANDEN BOUT –(53585 1 This print-out should have 7 questions Multiple-choice questions may continue on

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