
Diweddglo ecso/endo

Quiz
•
Chemistry
•
6th - 8th Grade
•
Hard
E Evans
Used 9+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa un o'r rhain sy'n wir ar gyfer adwaith ECSOthermig
Mae angen mwy o egni i dorri bondiau na chaiff ei ryddhau
Mae llai o egni'n cael ei ryddhau na sydd angen i dorri'r bondiau
Mae angen llai o egni i dorri'r bondiau na chaiff ei ryddhau
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pa un o'r rhain sy'n wir ar gyfer adwaith ENDOthermig
Mae angen mwy o egni i dorri bondiau na chaiff ei ryddhau
Mae mwy o egni'n cael ei ryddhau na sydd angen i dorri'r bondiau
Mae angen llai o egni i dorri'r bondiau na chaiff ei ryddhau
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mae tymheredd yr adwaith wedi mynd o 25 i 63°C, mae'r adwaith yn...
ecsothermig
hylosgiad
endothermig
niwtralu
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Wrth losgi magnesiwm mewn ocsigen, mae fflach llachar gwyn & llawer o wres yn cael ei ryddhau mae'r adwaith yn...
ecsothermig
hylosgiad
endothermig
niwtralu
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Wrth adweithio asid sitrig gydag alcali gwan sodiwm bicarbonad mae tymheredd y fflasg yn gostwng. Mae'r adwaith yn...
ecsothermig
hylosgiad
endothermig
niwtralu
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Tymheredd cyn: 22°C
Newid mewn tymheredd: 8°C
Beth yw'r tymheredd ar ôl?
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Tymheredd cyn: 22°C
Newid mewn tymheredd: -15°C
Beth yw'r tymheredd ar ôl?
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