Pressure in a glass is as a result of the collision of the gas molecules with the walls of the container, so when the volume of a fixed mass of gas is decreased through compression at constant temperature, molecules travel a shorter distance to collide with the wall of the container, leading to increased number of collision per unit time.
Edna Mandela olumo lina answered the question on July 24, 2020 at 09:54
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Date posted: November 14, 2019. Answers (1)
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Date posted: November 14, 2019. Answers (1)
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Date posted: November 14, 2019. Answers (1)
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Date posted: November 14, 2019. Answers (1)
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The figure below shows how the percentage of gas AB3 in the equilibrium mixture changes with temperature.
(a) Explain how the percentage of AB3 gas changes as shown in the figure.
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Date posted: November 14, 2019. Answers (1)
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Date posted: November 14, 2019. Answers (1)
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Date posted: November 14, 2019. Answers (1)
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Date posted: November 14, 2019. Answers (1)
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What mass of copper would be deposited from a solution of copper (II) chloride when a current of 3.0A is passed through the copper (II) chloride solution during electrolysis for 50 minutes? (Cu = 63.5, Faraday’s constant= 96,500 Coulombs)
Date posted: November 13, 2019. Answers (1)
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In a class experiment, 5.0g of ethanol were completely burnt and all the heat evolved was used to heat 500cm3 of water from 20o to 80oC. (Given that the specific heat capacity of water = 4.18Jg-1oC-1, density of water = 1.0gcm-3, C = 12, O = 16, H = 1.0)
i. Write a balanced equation to show the reaction that takes place when ethanol burns.
ii. Calculate the heat energy:
I. Absorbed by the water
II. Given out when one mole of ethanol was burned completely.
Date posted: November 13, 2019. Answers (1)
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Date posted: November 7, 2019. Answers (1)
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Study the information in the following table and answer the questions that follow. The letters do not represent the actual chemical symbols of the elements.
Which of the above elements are:
(i) Likely to be radioactive?
(ii) Able to form a compound with the highest ionic character?
Date posted: November 7, 2019. Answers (1)