Monday, January 30 l 10:20 PM turki alghunalmi® FlipltPhysics Physics 4B: EM and

Question

Monday, January 30 l 10:20 PM turki alghunalmi® FlipltPhysics Physics 4B: EM and Heat, S2017 California State University, Fresno macmillan learning Unit 2: Homework Homework: HW2 of Ch17&20 Deadline: 100% until Monday, January 30 at 11:59 PM Tipler6 17 P052. 1 2 1) Imagine that 10.1 g of liquid helium, initially at 4.20 K evaporate into an emnty bal' pon that is kept at 1.00-atm pressure. What is the volume of the balloon at the following? (a) 0.5430 L Submit You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question. 2) (b) 296 K 0.061326 rou currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question.

Explanation / Answer

1) mass of helium = 10.1 g

molar mass = 4 g / mol

moles n = 10.1 / 4 = 2.525 moleas

(A) P V = n R T

(101325 Pa) ( V ) = (2.525) (8.314) ( 26 )

V = 5.39 x 10^-3 m^3 = 5.39 LItre

(B) (101325) ( V ) = (2.522) (8.314) (296)

V = 0.0614 m^3 Or 61.4 L

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