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Why does a polythene bag steam up when you hold your hands in it?
When you hold your hands in a polythene bag, moisture from your skin is trapped inside. As your hands release heat, this moisture evaporates and condenses on the inside surface of the cooler bag, creating steam or water droplets.
How do you change the liquid water in your bag into water vapor?
leave it in the sun or boil it
Does polythene dissolve in water?
No, polythene does not dissolve in water as it is a non-polar polymer and water is a polar solvent. This lack of attraction between the polythene molecules and water molecules prevents it from dissolving.
What happens when a polythene strip is rubbed on a woolen cloth and then placed near a thin stream of running water from a tap?
The polythene becomes negatively charged.
Does polythene absorb water?
No - it is a synthetic polymer and it is not a natural polymer like cotton which has excellent absorption qualities.
What is polythene bag?
A polythene bag is a plastic bag. They are used to transport food from grocery stores, as well as trash and to assist in disposing chemicals.
Why does a polythene bag steam up when you hold your hands in it?
When you hold your hands in a polythene bag, moisture from your skin is trapped inside. As your hands release heat, this moisture evaporates and condenses on the inside surface of the cooler bag, creating steam or water droplets.
Why polythene bags do not melt while potatoes inside the bag melts when we placed all in microwave?
polythene bag has a higher melting point
What will happen if you take some coriander leaves and keep it in a polythene bag for few hours?
what will happen if coriender leaf is kept in polythene bag
How do you change the liquid water in your bag into water vapor?
leave it in the sun or boil it
How will you show that transpiration has occurred in a plant?
You can cover a plant with a polythene bag and keep for sometime and observe water droplets.
Which Indian states banned polythene bag?
kolkota
Do you open pouch of spices of a Crab boil?
DO NOT OPEN CRAB BOIL BAG. AFTER BOILING CRAB IN 212 degree WATER FOR 7 MINUTES, DISCARD BAG, DO NOT REUSE!
When metal rod is rubbed against polythene bag or sweater it attracts or not?
When a metal rod is rubbed against a polythene bag or sweater, the rod becomes charged with static electricity. The metal rod may be attracted to the polythene bag or sweater due to the opposite charges present on each material.
Does polythene dissolve in water?
No, polythene does not dissolve in water as it is a non-polar polymer and water is a polar solvent. This lack of attraction between the polythene molecules and water molecules prevents it from dissolving.
4 How long does it take for a polythene bag to degrade completely in the environment?
100yrs
What will happen to a plant if you tie a polythene bag around all its leaves?
tiny droplets of water will appear inside the bag.these tiny droplets are due to transpiration from leaves.
