{"id":86871,"date":"2025-06-01T04:22:22","date_gmt":"2025-06-01T04:22:22","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86871"},"modified":"2025-06-01T04:22:22","modified_gmt":"2025-06-01T04:22:22","slug":"a-sealed-container-contains-one-mole-of-helium-and-three-moles-of-nitr","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-sealed-container-contains-one-mole-of-helium-and-three-moles-of-nitr\/","title":{"rendered":"A sealed container contains one mole of helium and three moles of nitr"},"content":{"rendered":"

A sealed container contains one mole of helium and three moles of nitrogen gas at 25 \u00b0C. If the total pressure is 80000 Pa, what will be the partial pressure of nitrogen gas in the container?<\/p>\n

[amp_mcq option1=”20000 Pa” option2=”40000 Pa” option3=”60000 Pa” option4=”80000 Pa” correct=”option3″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC Geoscientist – 2022<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
The correct answer is 60000 Pa.<\/section>\n
According to Dalton’s Law of Partial Pressures, the partial pressure of a gas in a mixture is equal to its mole fraction multiplied by the total pressure of the mixture.<\/section>\n
Total moles of gas = Moles of Helium + Moles of Nitrogen = 1 mole + 3 moles = 4 moles. The mole fraction of nitrogen is (Moles of Nitrogen) \/ (Total moles) = 3 \/ 4. The total pressure is 80000 Pa. Partial pressure of nitrogen = (Mole fraction of nitrogen) * (Total pressure) = (3\/4) * 80000 Pa = 3 * 20000 Pa = 60000 Pa.<\/section>\n","protected":false},"excerpt":{"rendered":"

A sealed container contains one mole of helium and three moles of nitrogen gas at 25 \u00b0C. If the total pressure is 80000 Pa, what will be the partial pressure of nitrogen gas in the container? [amp_mcq option1=”20000 Pa” option2=”40000 Pa” option3=”60000 Pa” option4=”80000 Pa” correct=”option3″] This question was previously asked in UPSC Geoscientist – … <\/p>\n

Detailed SolutionA sealed container contains one mole of helium and three moles of nitr<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1091],"tags":[1108,1130,1128],"class_list":["post-86871","post","type-post","status-publish","format-standard","hentry","category-upsc-geoscientist","tag-1108","tag-heat-and-thermodynamics","tag-physics","no-featured-image-padding"],"yoast_head":"\nA sealed container contains one mole of helium and three moles of nitr<\/title>\n<meta name=\"description\" content=\"The correct answer is 60000 Pa. 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