I\'m having trouble answering the part of #8: \"Why do you assume that number is

Question

I'm having trouble answering the part of #8: "Why do you assume that number is constant?"

8. Why do you use the measurement at 5 °C to calculate the number of moles of air, and why do you assume that number is constant? We use Hal measurement 5°C td calcu late the number of molls of air beraut w assume that the vaPr Pressurt of water at *c nd assmi that this number 1 Constant What two factors cause the volume of gas trapped inside the graduated cylinder to increase upon heating? 9. onia, given that ???,-23.3 kJ/mol and ASva,-97.4 J/mol.

Explanation / Answer

Since the vapour pressure at 5 dgrees is approximately equal to atmospheric pressure and hence assume the number is contant for further evaluations of the no of moles else it would be quite difficult to calculate and with this we get approximate very close answer ahd hence this number is regarded as constant.

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