12-Charles Answers

12-Charles Answers - GCHEM I CONCEPT PROBLEMS ANSWERS GAS...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
                                             GCHEM I CONCEPT PROBLEMS ANSWERS GAS LAWS 10-26-10 1.  The temperature inside a refrigerator is 20.5  o C.  If a balloon is placed in the refrigerator at 54.7 o C and volume a volume  0.45  Ls, what  will be the volume of the balloon after the balloon reaches 20.5 o  C ? Gas Law ? : Charles Law V1/T1 = V2/T2 ; (0.45 Ls /(54.7+273.15) = (V2 /(20.5+273.15) ;  (.45 * 327.85) = (V2 * 293.65) ;   V2 = .40305         SF 2             V2 = .40 Ls   2  Under constant pressure conditions a sample of neon gas initially at 98.7  o  C and  9.6  Ls is cooled until the volume reaches 3.4 Ls.  What is  the final temperature ? Gas Law ? :  Charles Law V1/T1 = V2/T2 ; (9.6Ls/98.7+273.15) = 3.4Ls/T2 ;   .025816 =3.4/T2 ;  T2 = 131.73 K     SF 2      T2 = 130 K  3.   A flask of neon gas has a volume of  12.5  Ls.  If the flask of neon is kept at standard conditions (STP), how many grams of neon are in the flask ? Gas Law:  Avogadro Law    (12.4 grs)  ;  Ideal Gas  Law2  (11.3 grs)        12.5 Ls Ne      1.0 mole Ne            22.17 grs Ne    =  12.436 grs Ne                               
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/28/2011 for the course CHM 2045 taught by Professor Eng during the Spring '10 term at UNF.

Page1 / 2

12-Charles Answers - GCHEM I CONCEPT PROBLEMS ANSWERS GAS...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online