send an explained solution of this question. Ch 1 matter in our surroundings. explain it in 50 words. pls fast
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can u resend full image of this question
this is the full image other parts are not related to it.
but this much is not easy to understand
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Answer: A will have lower boiling point than B.
The higher the vapour pressure P of the liquid, the lower the boiling point temperature Tb is.
When we heat a liquid, some of it becomes vapour. So the vapour pressure just above liquid starts increasing. The liquid starts boiling when the vapour pressure P above liquid surface becomes equal to the saturation pressure Ps (constant for that substance). For example water starts boiling as soon as the vapour pressure reaches 1 atm (= Ps) at Tb = 100°C.
So higher the vapour pressure P, the earlier it will reach Ps. Because the difference in Ps - P is lesser. So earlier it boils. That means it will boil at a lower temperature T.
That means its boiling point Tb will be lower than that of the other liquid.
The higher the vapour pressure P of the liquid, the lower the boiling point temperature Tb is.
When we heat a liquid, some of it becomes vapour. So the vapour pressure just above liquid starts increasing. The liquid starts boiling when the vapour pressure P above liquid surface becomes equal to the saturation pressure Ps (constant for that substance). For example water starts boiling as soon as the vapour pressure reaches 1 atm (= Ps) at Tb = 100°C.
So higher the vapour pressure P, the earlier it will reach Ps. Because the difference in Ps - P is lesser. So earlier it boils. That means it will boil at a lower temperature T.
That means its boiling point Tb will be lower than that of the other liquid.
:-)
can u pls explain vapour pressure? I am new to this term
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it has low melting point than b
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