All substance cannot be changed from one state to another. Why?

1.	All substance cannot be changed from one state to another. Why?
Answer» Thanks abb mujhe think se neend ayegi bye ??? gn It\'s ohk kevin Yes helium Is a good example Helium is a good example or not Sorry for the late answer call aa gaya tha Water can be converted into all the states easily but the metal like Platinum cannot be converted into all states Arushi is my answer correct I think all substance can be changed but I also he is only element which is gas on atmospheric pressure but not easy to covert in liquid by cooling Example ?? although the substances can be changed from one state to another Koi hai kya?? All the substances can be changed from one form to another but it\'s very difficult because all substances doesn\'t have the simple or the temperature which can be attained easily so it\'s very difficult to change all the substances from one state to another

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