{"product_id":"andrews-carbonic-acid-plate-013-physics-poster","title":"Andrews' Carbonic Acid – Plate 013 Physics Poster","description":"\u003cp\u003ePlate 13 speaks for itself: \u003cem\u003e“Above 31 degrees, liquid and gas are one fluid.”\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eThe Physics\u003c\/h3\u003e\u003cp\u003eAndrews mapped the isotherms of carbon dioxide and found that above a critical temperature no pressure liquefies it: liquid and gas become one continuous fluid. The critical isotherm has an inflection with zero slope.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e(∂p\/∂V)_T = 0  and  (∂²p\/∂V²)_T = 0\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ep: pressure, Pa\u003c\/li\u003e\n\u003cli\u003eV: volume, m³\u003c\/li\u003e\n\u003cli\u003eT: temperature, K\u003c\/li\u003e\n\u003cli\u003eT_c, p_c: critical temperature (K) and pressure (Pa)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCO₂: T_c = 304.13 K (30.98 °C), p_c = 7.3773 MPa.\u003c\/p\u003e\u003ch3\u003eSources\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eT. Andrews, Phil. Trans. R. Soc. 159, 575 (1869).\u003c\/li\u003e\n\u003cli\u003eR. Span, W. Wagner, J. Phys. Chem. Ref. Data 25, 1509 (1996).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOn the poster\u003c\/h3\u003e\u003cp\u003ePlate 013, “Andrews' Carbonic Acid”: the pixel-art plate with its slogan “Above 31 degrees, liquid and gas are one fluid.”, the key equation and the facts panel shown above. Pixelated Physics. Physics. Personified.\u003c\/p\u003e","brand":"Printify","offers":[{"title":"9'' x 12\" (Vertical) \/ Matte","offer_id":50961664278631,"sku":"11483299900105549805","price":19.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Fine Art","offer_id":50961664311399,"sku":"21444042383823159080","price":29.99,"currency_code":"USD","in_stock":true},{"title":"9'' x 12\" (Vertical) \/ Semi Glossy","offer_id":50961664344167,"sku":"13357802929321433805","price":19.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Fine Art","offer_id":50961664376935,"sku":"31810670204303151739","price":44.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Semi Glossy","offer_id":50961664409703,"sku":"12146693830835421657","price":29.99,"currency_code":"USD","in_stock":true},{"title":"18″ x 24″ (Vertical) \/ Matte","offer_id":50961664442471,"sku":"32123952853472454833","price":29.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Matte","offer_id":50961664475239,"sku":"20964870417922869300","price":69.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Fine Art","offer_id":50961664508007,"sku":"31329514221250074252","price":119.99,"currency_code":"USD","in_stock":true},{"title":"36'' x 48\" (Vertical) \/ Semi Glossy","offer_id":50961664540775,"sku":"29862049299085954622","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/18243968695460455037_2048.jpg?v=1793632366","url":"https:\/\/pixelatedphysics.com\/products\/andrews-carbonic-acid-plate-013-physics-poster","provider":"Pixelated Physics","version":"1.0","type":"link"}