{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ps1_solutions_1b01_w06

# ps1_solutions_1b01_w06 - Chemistry 01B-01 Homework...

This preview shows pages 1–3. Sign up to view the full content.

Chemistry 01B-01 Homework Solutions Winter 2006 - 1 - Problem Set #1: Solutions Chapter 6: 5,7,13,21,25,27,32,36,42,47,53,56 6.5 a) electric heater b) sound amplifier c) light bulb d) automobile alternator e) battery (voltaic) 6.7 Heat energy; sound energy (impact) Kinetic energy (falling text) Potential energy (raised text) Mechanical energy (raising of text) Chemical energy (biological process to move muscles) 6.13 CaCO 3 ( s ) + 9.0 x 10 6 kJ CaO( s ) + CO 2 ( g ) (5.0 ton) a) Δ E (J) = (9.0 x 10 6 kJ) 3 10 J 1 kJ ! " # \$ # \$ % & = 9.0 x 10 9 J b) Δ E (cal) = (9.0 x 10 6 kJ) 3 10 J 1 cal 1 kJ 4.184 J ! " ! " # \$ # \$ # \$ % & % & = 2.15105 x 10 9 = 2.2 x 10 9 cal c) Δ E (Btu) = (9.0 x 10 6 kJ) 3 10 J 1 Btu 1 kJ 1055 J ! " ! " # \$ # \$ # \$ % & % & = 8.5308 x 10 6 = 8.5 x 10 6 Btu 6.21 Δ H = Δ E + P Δ V (const P) a) Δ H < Δ E , P Δ V is negative. b) Δ H = Δ E , a fixed volume means P Δ V = 0. c) Δ H > Δ E , P Δ V is positive for the transformation of solid to gas. 6.25 a) Na( s ) + 1/2 Cl 2 ( g ) NaCl( s ) + heat Increasing, H Na( s ) + 1/2 Cl 2 ( g ) NaCl( s ) ! H = (-), (exothermic) b) C 6 H 6 ( l ) + heat C 6 H 6 ( g )

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

View Full Document
Chemistry 01B-01 Homework Solutions Winter 2006 - 2 - Increasing, H C 6 H 6 ( g ) C 6 H 6 ( l ) ! H = (+), (endothermic) 6.27 a) CO 2 ( s ) + heat CO 2 ( g ) Increasing, H CO
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

ps1_solutions_1b01_w06 - Chemistry 01B-01 Homework...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online