chap 7/8
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| IF THE CONC OF ONE SPECIES IN EQUILIBRIUM DECREASED THE POSITION OF EQ SHIFTS... | TO FORM MORE OF THAT SPECIES.
🗑
|
||||
| DICHROMATE (VI) IONS CR2O72- ORANGE & CHROMATE IONS YELLOW IN AQ SOLUTION .... | THEY ARE IN EQUILIBRIUM CR2O72-(AQ) H2O(L) REVERSE ARROWS 2CRO42-(AQ) +2H+(AQ)
🗑
|
||||
| PREDICT/EXPLAIN COLOUR WHEN NAOH SOLUTION ADDED TO CHROMATE AND DICHORM .... | THE ALKALINE SODIUM HYDROXIDE REACTS WITH H+IONS (AQ) IN EQUILIBRIUM MIXTURE, LOWERING H+IONS CONCENTRATION. CAUSES EQUILIBRIUM TO SHIFT TO THE RIGHT THE SOLUTION CHANGES COLOUR FORM ORANGE TO YELLOW AS CHROMATE IS FORMED FORM DICHROMATE.
🗑
|
||||
| THE RATE OF REACTION WITH CATALYST IS ... | FASTER THAN RATE OF REACTION WITHOUT. IT LOWERS THE EA.
🗑
|
||||
| A CATALYST HAS NO EFFECT ON ... | THE POSITION OF EQUILIBRIUM OF THE REVERSIBLE REACTION.
🗑
|
||||
| CATALYST IS FAIR BECAUSE IT ... | SPEEDS UP FORWARD AND BACK REACTION EQUALLY, SO EQUILIBRIUM IS REACHED FASTER.
🗑
|
||||
| A CATALYST AT ROOM TEMP IS ... | SLOW.
🗑
|
||||
| FINDING SUITABLE CATALYST VERY NECESSARY FOR EXOTHERMIC REACTION ... | COZ PRODUCES LOWER YIELD AT HIGH TEMPS.
🗑
|
||||
| WHAT HAPS IS HABER PROCESS HAD NO CATALYST. | VERY LOW YEILD.
🗑
|
||||
| FOR REVERSIBLE REACTION ... | A HIGH TEMP RESULTS IN LOW EQUILIBRIUM YIELD, REACHED QUICKLY COZ REACTION IS FAST. LOWER THE TEMP CAUSES ,HIGH EQUILIBRIUM YIELD REACHED MORE SLOWLY COZ REACTION RATE IS SLOW.
🗑
|
||||
| WHY IS A CATALYST NEEDED FOR HABER PROCESS ... | ALLOW REACTION TO TAKE PLACE RAPIDLY AT LOWER TEMP, OF ACCEPTABLE YIELD PRODUCED AT REASONABLE RATE.(CALLED COMPROMISE TEMP AS IT BALANCES AN ECONOMIC YIELD WITH AND ECONOMIC RATE).
🗑
|
||||
| WHY IS THE CAATKYST TEMP CALLED COMPROMISE TEMP ... | BALANCES AN ECONOMIC YIELD WITH AND ECONOMIC RATE.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
ufuoma
Popular Chemistry sets