00:01
To answer this question, we'll need to use a form of the yvonne -hough equation where the natural log of the equilibrium constant at one temperature is equal to negative delta h standard over r multiplied by one over the temperature for which we want to calculate the equilibrium constant in kelvin minus one over a temperature for which we know an equilibrium constant, plus the natural log of that known equilibrium constant.
00:37
So the natural log, the natural log of k1 will be equal to negative delta h standard, which is 180 .6 kilojoules.
00:53
When using this equation, it needs to be in joules per mole.
00:57
So it'll be 180 ,600 joules, which will divide by 8 .314, that being, the r value and then it'll be one over the kelvin temperature for which we want to calculate kc 31 .00 degrees celsius will add 273 .152 and then subtract off one over the kelvin temperature for which we know an equilibrium constant that's 2 ,000 degrees celsius which will be 2 ,273.
01:35
173 .15 kelvin and then plus the natural log of the kc value at 2 ,000 degrees celsius 4 .1 .00 times 10 to the negative 4...