Paani ki teen states kaun si hain?

Kya ice aur paani sach mein ek hi cheez hain?

Ice haath mein sakht lagti hai aur use pakad sakte ho. Paani ungliyon se beh jaata hai. To kya ye alag-alag padarth hain? Ye karke dekho: ice ka ek tukda cup mein mez pe chhod do. Thodi der baad cup mein sirf paani bachega. Ab wahi paani freezer mein rakho, wo phir ice ban jaayega.

Na kuch joda gaya, na kuch nikala gaya. Matlab ice aur paani ek hi padarth, paani, ke do roop hain. Scientists in roopon ko states kehte hain.

Paani ki teen states kaun si hain?

Roz ki zindagi mein paani teen states mein milta hai:

State	Naam	Kahan dikhta hai
Solid	Ice (barf)	Ice cubes, ole, barf
Liquid	Paani	Glass ka paani, baarish, nadi
Gas	Water vapour	Hamare aas-paas ki hawa mein, par dikhti nahi

Teeno states kaise behave karti hain?

Ye test ghar pe ek katori, ek dabba aur ek plate se kar sakte ho.

• Shape. Ice ka tukda gol katori se chaukor dabbe mein rakho. Wo apni shape banaye rakhta hai. Lambe glass ka paani chapti plate mein daalo. Paani jis bartan mein ho uski shape le leta hai, yaani uski koi fixed shape nahi hai.
• Behna (flow). Paani ek bartan se doosre mein behta hai. Ice nahi behti.
• Phailna (spread). Saaf farsh pe thoda paani giraao, wo phail jaata hai, par paani ki maatra wahi rehti hai: uska volume nahi badalta. Ice nahi phailti.

Water vapour ki bhi koi fixed shape nahi hoti, aur wo jitni jagah mile, poori mein phail jaati hai. Jab pocha laga farsh sookhta hai, to water vapour poore kamre ki hawa mein mil jaati hai. Isi tarah rasoi mein ban rahe khane ki khushboo doosre kamre tak pahunch jaati hai, kyunki khushboo hawa mein phailti hai.

Water vapour: dikhne mein na aane wali state

Water vapour room temperature pe bhi hoti hai, par dikhti nahi. Sookhte kapde, pocha laga farsh aur hamara paseena hawa mein lagaataar vapour milaate rehte hain.

To ubalte paani ke bartan ya garam dosa tawe ke upar jo safed “dhuaan” dikhta hai, wo kya hai? Wo steam hai. Steam water vapour hi hai, par jo safed hissa dikhta hai wo paani ki chhoti boondon se bana hai, jo vapour ke thoda thanda hone pe banti hain. Shuddh water vapour dikhti nahi.

Paani ki state kaise badalte hain?

Ice se paani, aur paani se water vapour banane ke liye garmi deni padti hai. Ulta karne ke liye thanda karna padta hai.

Badlaav	Process ka naam
Solid → liquid (ice → paani)	Melting (pighalna)
Liquid → solid (paani → ice)	Freezing (jamna)
Liquid → gas (paani → water vapour)	Evaporation
Gas → liquid (water vapour → paani)	Condensation

Chaaron ghar pe dikh jaate hain. Plate pe rakhi ice pighalti hai. Freezer mein paani jamta hai. Geele kapdon ka paani evaporate hota hai to wo sookh jaate hain. Ubalte paani ke bartan ke dhakkan ke neeche boondein jamti hain, kyunki vapour condense hoti hai. Evaporation bina garam kiye bhi hota hai, bas dheere: thande din bhi puddle sookh jaata hai. Aur jaano: evaporation aur condensation.

Kya doosre padarthon ki bhi ye states hoti hain?

Haan. Mombatti wax se bani hoti hai: lau ke paas wax pighal ke liquid ban jaata hai, aur lau se door thanda hoke phir jam jaata hai. Ghee aur nariyal ka tel garam din mein liquid rehte hain, par sardi mein aksar jam jaate hain.

Apne aas-paas aur examples dhoondo:

• Solids: patthar, lakdi, kaanch.
• Liquids: doodh, tel, juice.
• Gases: hawa, jisme oxygen aur carbon dioxide hoti hain.

To solid, liquid aur gas ka idea sirf paani ke liye nahi hai. Bahut se padarth alag-alag states mein reh sakte hain, is pe depend karta hai ki wo kitne garam ya thande hain.