Question

Question 5 5 pt A 20.2 L cylinder that has a moveable piston is filled with gas X at a pressure of 0.966 atm at 45.0°C If the piston is pulled up (expansion) so that the new volume is 36.7 L and the new pressure is 0.555 atm, what is the new temperature (in K) assuming constant amount of gas X? 332 309 47.0 0.00301 Question 6 5 pts A mixture of gases containing only three types of gases (Ne, Ar and He) has a total pressure of 0.75 atm. The mol fractions of Ne and Ar are 0.15 and 0.81 respectively. What is the partial pressure of He in atm? 0.030 19 0.040 Not enough information

Answer 1

gas, Hence using ideal Comodel gas cylinder contain ideal gas equation i- - pv= MRT criven gas amoul remain n = constant constart so – Pivo - Portal • P= 0.966 atm, vi= 20. 2L, TI=45°C = 45+273 = 318k P2= 0.555 calm va c 36.72, T2=2 pulting the all vake 0.966 atm x 20.22 0.555 atm x 36.72 Т2 3786 Tec 0.555 x 36.7 X 318 te 0.966 x 20.2 TE 3326 Am step-I geven mole fraebm of gases fraction of - Mole Ne= X Ar= 0.15 0.01 - thal Total fraction mole And we know geven = 0.75 Xnet xart Tue= t The = 1-0.15-0.81 the 2 0.04. Total pressure partial pressure of ges: mole fraction & Tural prenw Scanned with = 0.64*0.78 CamScanner C Pree = 0.030