what had Priestly done to introduce the mint plant without disturbing the experiment set up?
Asked by Praveen
14th July 2015,
5:47 AM
Answered by Expert
Answer:
- Priestley observed that a burning candle would get extinguished in a closed bell jar.
- In August 1771, Joseph Priestley conducted another set of experiments where he placed a mint plant into a transparent closed space with a burning candle that eventually burned out the air until it soon went out.
- Priestly discovered that the relit candle burned perfectly well in the air that previously would not support it.
- In another experiment conducted in 1772, Priestley kept a mouse in a jar of air until it collapsed. He found that a mouse kept with a plant would survive.
- After 27 days, he relit the extinguished candle again.
- These kinds of observations led Priestley to offer an interesting hypothesis that plants restore to the air whatever breathing animals and burning candles remove - what was later coined by Lavoisier as "oxygen".
- In these experiments, Priestly was the first to observe that plants release oxygen into the air by the process of photosynthesis.
Answered by Expert
14th July 2015,
10:58 AM
Rate this answer
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
You have rated this answer 1/10
Your answer has been posted successfully!
RELATED STUDY RESOURCES :
Browse free questions and answers by Chapters
Trending Tags
Latest Questions
JEE Main Mathematics
Asked by amaladelsingh
28th October 2020,
10:24 PM
CBSE X Biology
Asked by reenacharan2008
28th October 2020,
9:11 PM
