{"id":7160,"date":"2024-04-15T02:40:30","date_gmt":"2024-04-15T02:40:30","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7160"},"modified":"2024-04-15T02:40:30","modified_gmt":"2024-04-15T02:40:30","slug":"a-perfect-gas-a-has-constant-viscosity-b-is-incompressible-c-is-of-theoretical-interest-d-none-of-the-above","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-perfect-gas-a-has-constant-viscosity-b-is-incompressible-c-is-of-theoretical-interest-d-none-of-the-above\/","title":{"rendered":"A perfect gas A. has constant viscosity B. is incompressible C. is of theoretical interest D. none of the above."},"content":{"rendered":"<p>[amp_mcq option1=&#8221;has constant viscosity&#8221; option2=&#8221;is incompressible&#8221; option3=&#8221;is of theoretical interest&#8221; option4=&#8221;none of the above.&#8221; correct=&#8221;option4&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>D. none of the above<\/strong><\/p>\n<p>A perfect gas is an idealized gas that obeys the ideal gas law. It is a theoretical concept that is useful for understanding the behavior of real gases. A perfect gas has no viscosity, is incompressible, and has no internal energy.<\/p>\n<ul>\n<li>A perfect gas has no viscosity. This means that there is no friction between the molecules of the gas. This is an idealized condition, as real gases do have some viscosity.<\/li>\n<li>A perfect gas is incompressible. This means that the volume of a perfect gas does not change with pressure. This is also an idealized condition, as real gases do compress under pressure.<\/li>\n<li>A perfect gas has no internal energy. This means that the molecules of a perfect gas do not have any kinetic energy. This is also an idealized condition, as real gases do have some kinetic energy.<\/li>\n<\/ul>\n<p>The ideal gas law is a mathematical equation that relates the pressure, volume, and temperature of a gas. The ideal gas law is given by the following equation:<\/p>\n<p>$$PV = nRT$$<\/p>\n<p>where $P$ is the pressure of the gas, $V$ is the volume of the gas, $n$ is the number of moles of gas, $R$ is the ideal gas constant, and $T$ is the temperature of the gas.<\/p>\n<p>The ideal gas law is a good approximation for the behavior of real gases at low pressures and high temperatures. However, real gases do deviate from the ideal gas law at high pressures and low temperatures.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;has constant viscosity&#8221; option2=&#8221;is incompressible&#8221; option3=&#8221;is of theoretical interest&#8221; option4=&#8221;none of the above.&#8221; correct=&#8221;option4&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[648],"tags":[],"class_list":["post-7160","post","type-post","status-publish","format-standard","hentry","category-hydraulics-and-fluid-mechanics","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A perfect gas A. has constant viscosity B. is incompressible C. is of theoretical interest D. none of the above.<\/title>\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\/a-perfect-gas-a-has-constant-viscosity-b-is-incompressible-c-is-of-theoretical-interest-d-none-of-the-above\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A perfect gas A. has constant viscosity B. is incompressible C. is of theoretical interest D. none of the above.\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;has constant viscosity&#8221; 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