lesson: air. science differentiation in action air contains: 78% nitrogen (n 2 ) 21% oxygen (0 2 )...

Lesson: Air

Upload: gordon-stafford

Post on 28-Dec-2015

217 views

Category:

Documents

1 download

Report

Download

Embed Size (px):

TRANSCRIPT

Lesson: Air

Science Differentiation in action

Air contains:

78% nitrogen (N2)

21% oxygen (02)

1% water vapour & other gases

0.03% carbon dioxide (CO2)

Air is a mixture!

These figures are approximate.

Science Differentiation in action

Why is air a mixture?

1. The gases that make it change in proportion or composition.

2. Its gases become liquids when cooled and can be separated one at a time.

3. When the right gases are mixed, air is formed. No heat is given out or taken in so no new compound is made.

Science Differentiation in action

To show the amount of oxygen in air, carry out an experiment.

What did you discover?

The percentage of oxygen in air is _____21%.

Science Differentiation in action

How would you show that there is carbon dioxide (CO2) in air?

Use _________

CO2 turns limewater _____

AIR

milky.

limewater.

Science Differentiation in action

How would you show that there is water vapour in air?

Use __________________

Water vapour turns cobalt chloride paper from blue to _____

Water vapourNo Water vapour

Cobalt chloride paper

pink.

Science Differentiation in action

What happens when you burn a wooden splint in air?

It burns easily.

What changes are taking place?

Science Differentiation in action

What happens when you burn magnesium in air?

It burns easily.

What changes aretaking place?

magnesium magnesium oxide

Science Differentiation in action

1. Which is the most abundant gas in air?

Review Questions

2. Does the composition of gases vary in air?

3. What paper do you use to test for water vapour?

Science Differentiation in action

Predict what would happen if you burned a wooden splint or magnesium in pure oxygen?

Question to think about!

Test tube of oxygen

HEAT RADIATION OF BURNING HYDROGEN/AIR MIXTURES IMPURIFIED BY ORGANIC VAPOUR AND PARTICLES

Vapour in Air Diffusion

Centrifugal Inline Fans - Greenheck-USA...CMH 591 561 532 505 472 443 415 384 348 306 kW 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.1 dBA/LwA 49/60 49/60 48/60 48/60 48/60 48/60

Construction Materials: Air/Vapour Barriers, …Construction Materials: Air/Vapour Barriers, Membranes, Sealants, Thermal Insulation and Properties BSCE, BCIT-HPO 2 May, 2015 2002

FieldIT TZIDC-120 Electro-Pneumatic Positioner · – air consumption of less than 0.03 kg/h Smart ... valve air channels for filling the ac tuator with air or evacuating air

Residential Platform Lifts CompliAnt · 2014. 10. 25. · Lift speed (m/s) 0.03 0.03 0.03 0.03 0.03 Tower height - lowered lift (mm) 1480 1480 1480 1980 1980 Tower height - raised

May 21, 2020 Alpha Daily Summary · RTN Return Egy I 371,000 $10,630 14 $0.03 $0.03 $0.03 KLY Kalytera The 350,000 $7,750 6 $0.03 $0.03 $0.02 RTI Radient Tech 327,030 $65,258 52 $0.19

Guidance for Soil Vapour and Indoor Air Monitoring ... · Atlantic RBCA Guidance for Soil Vapour and Indoor Air Monitoring Assessments: Overview December 7th, 2006 Moncton, New Brunswick

45719 0.03%, 0.1% Protopic Ointment 0.03%, 0.1% (Tacrolimus … · 2016. 10. 11. · 45719 0.03%, 0.1% Protopic Ointment 0.03%, 0.1% (Tacrolimus Ointment) 0.306mg 0.1% 1.02mg 1.0mg)

EXPERT IN VAPOUR BARRIER AND AIR-TIGHT SEALS · EXPERT IN VAPOUR BARRIER AND AIR-TIGHT SEALS. Barnier System ... • The 1235 PrePosition can be used on corners thanks to its pre-cut

PENGANTAR PENGOLAHAN AIR · Parameter Unit Drinking Water Standard PP 32 ... Aldrin/Dieldrin µg/L 17 0.7 0.7 0.03 * 0.3 0.7 * ... Parameter Kimia Air

Air Barriers & Vapour Barriers SPUF Vapor... · 2006-03-20 · Vapour Barriers, Air Barriers and ... Spray applied (continuous) product that Provides insulation (high R/inch) Provides

Cordis EMPIRA NC - Cardinal Health...Inches EMPIRA NC Hiryu DURA STAR Voyager NC RX Quantum Maverick Monorail Millimeters 0.03 0.03 0.03 0.03 0.03 0.033 0.032 0.2 0.3 0. 0. 0.3 0.32

V. Water Vapour in Air

Refrigeration & Air-conditioning - DESTamanguptaa.weebly.com/.../refrigeration_and_air-conditioning.pdf · REFRIGERATION & AIR-CONDITIONING ... MCQ 9.16 A vapour absorption refrigeration

€¦ · XLS file · Web view · 2017-05-042.35 0.03 2.2799999999999998. 61.65 0.03 59.8. 0.39 0.05 0.37. 526 0.03 510.22. 76 0.03 73.72. 26.99 0.03 26.18. 9.35 0.03 9.07. 0.99

Documents/… · XLS file · Web view2017-02-01 · 2.35 0.03 2.2799999999999998. 59.65 0.03 57.86. 71.650000000000006 0.03 69.5. 67.39 0.03 65.37. 6575 0.03 6377.75. 8498 0.03 8243.06

C5: Chemicals of the natural environment file · Web viewThe atmosphere contains approximately: 78% nitrogen. 21% oxygen. 1% argon. 0.03% carbon dioxide. Small amounts of water vapour

s3-ap-northeast-1.amazonaws.com · kg.cm2 40 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.13 0.13 0.13 0.13 0.03 0.03 0.03 0.03 0.03 0.45 0.44 0.44 0.44 0.13 0.13 0.13 0.13

Vapour Engineers : Electrostatic Precipitator,Air Pollution Control Equipment, Bag Filter

WATER VAPOUR ABSORPTION IN TERRESTRIAL ISOPODSof vapour condensation in saturated air. Subsequently, the same author has shown that three xeric isopod species attain equilibrium between

Modelling the power system of Bolivia in order to …1238578/...DLSCP00 0.0394 0.0394 0.0394 0.0394 0.03 0.03 0.03 0.03 0.03 EL00T00 99999 99999 99999 99999 99999 99999 99999 99999

SOLAR AIR CONDITIONING TO RUN VAPOUR C (VAC)rachanasansad.edu.in/dept/Envior/cooling/img/deepak_gaadhia.pdf · SOLAR AIR CONDITIONING TO RUN VAPOUR ABSORPTION CHILLERS (VAC) Deepak

OCN 201 Atmospheric Circulation - SOEST · OCN 201! Atmospheric Circulation! ... Humid air is less dense than dry air -- Why ... Warm air can contain more water vapour than cold air

На основу члана 25 - Kikinda · Johnnie Wallker 0.03 Vodka Keglevich vod.cla. 0.03 Smirnoff vod. 0.03 Konjak Courvoisier 0.03 Martell 0.03 Stock 0.03 Vinjak 0.03 Courvoisier

Refrigeration & Air Conditioning (MAB-4533) Chapter- 11 Vapour Compression Refrigeration Systems

SAFETY DATA SHEET ALUMINIUM PUTTY (F) RESINALUMINIUM PUTTY (F) RESIN Initial boiling point and range >260 C @ Flash point > 204 C Vapour pressure

Ballast Discharge and stripping while Loading - …€¦ · Inert Gas Generator L.P.G. Heater Air Blower VAPOUR HEADER liquid vapour Cargo Refrigeration / Re-liquefaction at sea

FEASIBILITY OF VAPOUR ABSORPTION BASED AIR- …

· XLS file · Web view · 2017-02-012.35 0.05 2.23. 58.19 0.03 56.44. 4.8499999999999996 0.03 4.7. 523 0.03 507.31. 669 0.03 648.92999999999995. 813 0.03 788.61. 589 0.03 571.33000000000004

Air and Vapour Barriers - Overview of Presentation Who ... Comfort Air Vapour barri… · • Use lower perm insulation (foam)?If moderate, use retarder, like paint?Insulated sheathing

Copy (3) of COLD ROOM - Ramesh Paranjpeyramesh-paranjpey.com/articles/Importance of vapour barrier Jan 2010... · and Singapore as well as Voltas-Air ... Importance of a Vapour Barrier

X(pert) A(dvanced) - Digitron Italia · Speciﬁ c Enthalpy (mass of air) kJ/kg Saturation vapour pressure above ice/water (hPa) Vapour particle pressure (hPa) Air density kg/m3 Calculated

The Difference Between a Vapour Barrier and an Air Barrier · A vapour barrier is important, particularly in high humidity buildings such as computer centers, museums, hospitals,

Refrigeration and Air Conditioning (2161908) · A Laboratory Manual for Refrigeration and Air Conditioning (2161908) ... Fig. 1.1 Schematic diagram of Vapour Compression Refrigeration