Why is mercury used in a barometer? Why is the top of the foot called the dorsum? Why is entomology important? Why is a bee a keystone species? Why is crude oil called a fossil fuel? How does a bird's beak help identify its habitat?
Why mercury is used in barometer for measuring atmospheric pressure? View Solution Mercury has almost no vapour pressure. Why? View Solution A faulty barometer contains certains amount of air and saturated water vapour . It reads 74.0cm when the atmospheric pressure is 76.0cm of mercury and reads...
Why is mercury used in a barometer? Why does air have pressure? Why is there no rain in the stratosphere? Why is nitrogen not a greenhouse gas? Why does the thermosphere have the highest temperature? Why does temperature increase with altitude in the stratosphere?
Why is it advised to carry school bags on both shoulders instead of one shoulder? View Solution Why has Azad used big words ? View Solution Why mercury is used in barometer instead of water ? View Solution What is the nature of the eye lens and what does the eye lens do ? View ...
some 400,000 people gathered in the tuileries gardens in paris to see the world's first manned flight in a hydrogen balloon. jacques charles and his assistant, nicolas-louis robert, ascended 1,800 feet into the sky accompanied by a mercury barometer, some sandbags, and a few bottles of ch...
Why in deep waters of oceans the water seems still? Explain by using surface tension. Why is it difficult to make mercury enter a fine thermometer tube? A mercury barometer always reads less than actual pressure. Explain why. Explain why argon does n...
The atomic forces in mercury are very stronger metallic bonds. Therefore, Hg is almost non-volatile
Why is UVA light considered a mutagen? Why is Greek natural philosophy significant? Why do scientific theories change? Why is loess soil usually fertile? Why is upwelling important? Why is the Anthropocene extinction event important? Why is mercury used in a barometer?
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Why is this procedure rarely used in very cold climates? Freezing and melting point Each liquid has a point where it starts changing liquid into solid. Similarly, every liquid turn solid has a point where it starts changing solid into a liqui...