Question

Question 1 (Calculation) Convert the following units (a) 33"c 273 1333 K 0.967 (b) 735 tor o00 Pa L () 0.15 m2s 710 t Why? Deaing with unts nolding converting rits·isome to geting the science rigt Not omdy accounting for units can lead to costy mistakes- ike NASA crashing a billion-dollar spaceship into a planet because of a mistake with units of feetmetres Question 2 (Crtical Thinking) Kinetic model of gases: Understand trends and interpret the density, pm/ deal gas law, PV nRT kinetic energy per mot KE.-ir--1 partial pressure, Pax Pos (xa is mol fraction) Consider a sealed fask containing oxygen gas, Olg). Complete the table below, indicating whether each of the physical properties listed will increase, decrease, or be unchanged as the sysem is altered in three separate experiments as follows (explain your answer) (a) Lower the temperature (b) Decrease the volume while maintaining the original temperabure. add some helium, Helg). to the axygen gas in the (c) As shown in the same sealed fask (volume is unchanged) 00 | o, 00 00 o0 (b) decrease volume (a) lower temperature (c) add some helium to the Oz sity of gas, ρ decres cha average kinetic energy of average speed of molecules total pressure in flask partial pressure of Oz in flask Understanding and using these relationships is aritical to any field of science-including the ability to predict what will happen to

Answer 1

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