CBSE Class 9 Answered
Before an injection, the nurse applies spirit at the site. How does one feel?
Asked by Topperlearning User | 05 Apr, 2016, 12:37: PM
Expert Answer
The area feels cold as the spirit evaporates from the skin. This happens because, when the spirit changes from the liquid state to the vapour state, it absorbs heat energy from the skin. The skin thus loses heat and feel cool.
Answered by | 05 Apr, 2016, 02:37: PM
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