Question

naphthalene balls disappear with time without leaving any solid .

we can get the smell of perfume sitting several metres away .


water at room temperature is a liquid

an iron almirah is a solid at room temperature .

what produces more severe burns boiling water or steam ? ​

Answer 1

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naphthalene balls disappear with time without leaving any solid .

naphthalene balls disappear with time without leaving any solid because naphthalene balls sublime and directly changes into vapour state without leaving any solid .

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we can get the smell of perfume sitting several metres away

we can get the smell of perfume sitting several metres away because perfume volatile solvent and diffuse faster in the air and can reach people sitting several metres away .

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water at room temperature is liquid

water at room temperature is liquid because it's freezing point is zero degree Celsius and boiling point is hundred degree Celsius .

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an iron almirah is a solid at room temperature

an iron almirah is a solid at room temperature because melting point of iron is higher than room temperature .

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what produces more severe burns boiling water or steam ?

steam at hundred degree Celsius will produce more severe burns as extra heat is hidden in it called latent heat whereas the boiling water does not have this hidden heat .

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