Molecules are cooler so they bocme more dense.. move very slow, have less kinetic energy and are not in random motion.
Answer:
NO OF NEUTRON =MASS NO -ATOMIC NO
=39-19
=20
bcz atomic no is equal to no of electrons
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It is make the molecule polar.
The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.
Answer:
Work done=50J
Heat removed=29J
Now
Hence the internal energy would decrease by 21J
