{"id":88385,"date":"2025-06-01T07:09:17","date_gmt":"2025-06-01T07:09:17","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88385"},"modified":"2025-06-01T07:09:17","modified_gmt":"2025-06-01T07:09:17","slug":"water-boils-at-a-lower-temperature-at-high-altitudes-because","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/water-boils-at-a-lower-temperature-at-high-altitudes-because\/","title":{"rendered":"Water boils at a lower temperature at high altitudes, because"},"content":{"rendered":"

Water boils at a lower temperature at high altitudes, because<\/p>\n

[amp_mcq option1=”the air pressure is less” option2=”outside temperature is less” option3=”latent heat is less” option4=”None of the above” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-2 – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nWater boils at a lower temperature at high altitudes because the atmospheric pressure is lower. Boiling occurs when the vapor pressure of the liquid equals the surrounding atmospheric pressure. With lower external pressure, a lower temperature is needed for water’s vapor pressure to reach that level.
\n<\/section>\n
\nBoiling point is the temperature at which the vapor pressure of a liquid equals the ambient atmospheric pressure. Pressure decreases with increasing altitude, leading to a lower boiling point.
\n<\/section>\n
\nAt sea level, the boiling point of water is 100\u00b0C (212\u00b0F) at standard atmospheric pressure. At significantly higher altitudes, such as in mountainous regions, the boiling point can be several degrees lower. For example, at an altitude of 5,000 feet (approx 1500m), water boils at about 95\u00b0C (203\u00b0F). This is why cooking times often need to be adjusted at high altitudes.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Water boils at a lower temperature at high altitudes, because [amp_mcq option1=”the air pressure is less” option2=”outside temperature is less” option3=”latent heat is less” option4=”None of the above” correct=”option1″] This question was previously asked in UPSC NDA-2 – 2017 Download PDFAttempt Online Water boils at a lower temperature at high altitudes because the atmospheric pressure … <\/p>\n

Detailed SolutionWater boils at a lower temperature at high altitudes, because<\/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":[1094],"tags":[1101,1130,1128],"class_list":["post-88385","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1101","tag-heat-and-thermodynamics","tag-physics","no-featured-image-padding"],"yoast_head":"\nWater boils at a lower temperature at high altitudes, because<\/title>\n<meta name=\"description\" content=\"Water boils at a lower temperature at high altitudes because the atmospheric pressure is lower. Boiling occurs when the vapor pressure of the liquid equals the surrounding atmospheric pressure. With lower external pressure, a lower temperature is needed for water's vapor pressure to reach that level. Boiling point is the temperature at which the vapor pressure of a liquid equals the ambient atmospheric pressure. Pressure decreases with increasing altitude, leading to a lower boiling point.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/water-boils-at-a-lower-temperature-at-high-altitudes-because\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Water boils at a lower temperature at high altitudes, because\" \/>\n<meta property=\"og:description\" content=\"Water boils at a lower temperature at high altitudes because the atmospheric pressure is lower. Boiling occurs when the vapor pressure of the liquid equals the surrounding atmospheric pressure. With lower external pressure, a lower temperature is needed for water's vapor pressure to reach that level. Boiling point is the temperature at which the vapor pressure of a liquid equals the ambient atmospheric pressure. 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