Why does a balloon filled with hot air r...

Why does a balloon filled with hot air rise upward in air?

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CHHAYA PUBLICATION-STATES OF MATTER : GASES AND LIQUIDS-WARM UP EXERCISE

Determine the SI unit of (PV^(2)T^(2))/(n)
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At 27^(@)C and 1 atm pressure the volume of a 5.0 g mixture of He and ...
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Why does a balloon filled with hot air rise upward in air?
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Density of an ideal gas at T temperature and P pressure is d(1). The p...
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Arrange O(2),CO(2),Ar and SO(2) gases present in a sample of air in or...
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A gas mixture consisting of O(2) and N(2) gases gas a volume of 5 L at...
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In a gas mixture of H(2) and He, the partial pressure of H(2) is half ...
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A closed vessel contains an equal mass of O(2) and CH(4) gases at 25^(...
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A mixture of O(2) and H(2) gases contains 20% of H(2) gas. At a certai...
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At a constant temperature, gas A (volume V(A) and pressure P(A)) is mi...
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For which of the following gas mixtures is the dalton's law of partial...
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In a mixture of A,B and C gases, the mole fractions of A and C are 0.2...
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A gas mixture consists of three gases A, B and C with the number of mo...
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Rank Cl(2),SO(2),CO(2),CH(4) gases in increasing order of their rates ...
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Why are the rates of diffusion of N(2)O and CO(2) gases the same under...
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At constant temperature and pressure the rate of diffusion of H(2) gas...
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Under the same conditions, a gas diffuses sqrt(2) times as fast as SO(...
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Besides the lower layer, CO(2) is also found in the upper layer of the...
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The molecular masses of A,B,C are 2,4 and 28, respectively. Arrange th...
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A closed vessel holds a gas mixture consisting of C(2)H(6),C(2)H(4) an...
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