W40 Gas Laws Ex 2

 Name of student: _________________________ _________________________

Class: Date: Week: Time:

Wednesday 05.10.16 40 (6.30 pm – 9.30 pm

!ipli "assin #esou$%es& 'e$itae )a$den *u+,e%t: Topi%:

-'"*C*& /o$m  4 – HEAT – 4.4 Gas Laws ( Exercise  Exercise 2)

1. o2l o2le ess la4 stat states es tat tat te te p$essu p$essu$e $e of a as at %onstant tempe$atu$e is di$e%tl2 p$opo$tional to te olume of te as A. ine$sel2 p$opo$tional to te olume of te as B. di$e di$e%t %tl2 l2 p$op p$opo$ o$tio tiona nall to te te s7ua s7ua$e $e of te te C. olume of te as D. ine$s ine$sel2 el2 p$opo p$opo$ti $tiona onall to te s7ua$e s7ua$e of te olume of te as

A. B. C. D.

te p$essu$e of te as is dou+led. Wat is te final olume of te as; 100 %m3 800 %m3 600 %m3 <00 %m3

6. Dia Dia$am $am 1 so4 so4ss an ai$ +u++ +u++le le p$od p$odu% u%ed ed +2 a fis.

8.  as as at a p$essu p$essu$e $e of 180 180kk-aa and a olum olumee of  3 00 %m  is epanded at a %onstant tempe$atu$e to a olume of 600 %m 3. Wat is its final p$essu$e; A. 1<0 k-a B. 180 k-a C. <0 k-a D. 0 k-a

Diagram 1

3.  neo neon n as as at 180 180 k-a is is allo4 allo4ed ed to ep epan and d at a 3 %onstant tempe$atu$e f$om 0.016 m  to 0.080 m 3& 4at is te final p$essu$e of te neon as; A. =5 k-a B. < k-a C. <0 k-a D. 108 k-a

A. B. C. D.

. Wi% i% of te te follo llo4in $aps %o$$e%tl2 tl2 $ep$esents te $elationsip +et4een te p$essu$e and te olume of a ien mass of as at a %onstant tempe$atu$e;

Wat is te olume of te ai$ +u++le at  N  if   if its 3 olume at M  at M  is  is <.0 %m ; >ssume >ssume te atmospe$i% atmospe$i% p$essu$e p$essu$e is e7uialent e7uialent to 10 m of 4ate$? 18.0 %m3 10.= %m3 6.0 %m3 8.= %m3

=.  as as in a %onta %ontaine ine$$ ain ain a f$i%ti f$i%tionl onless ess pisto piston n is at a tempe$atu$e of 80 oC and olume of 0.086 m3. Te as is eated at %onstant p$essu$e to a final final tempe$ tempe$atu atu$e $e of 100oC. Wat is te final olume of te as; A. 0.013 m3 B. 0.130 m3 C. 0.033 m3 D. 0.330 m3 <. n ai$ ai$ +u++le +u++le of of diame diamete$ te$ 5 mm is $ele $eleased ased +2 a fis in sea 4ate$ at a dept of 8 m. Wat 4ould  +e te diamete$ of te +u++le 4en it $ea%es te su$fa%e of te sea 4ate$; >ssume >ssume te atmospe$i% atmospe$i% p$essu$e p$essu$e is e7uialent e7uialent to 10 m of sea 4ate$? =.5 mm A. 9.8 mm B.

5. Te Te olum olumee of a as as in in a esse essell is 00 00 %m %m 3. Te as is %omp$essed at %onstant tempe$atu$e until

1

© cikgubid

C. D.

1=.0 mm 85.0 mm

C. D.

9. n Dia$am 8& te %apilla$2 tu+es in (a and (+ a$e identi%al.

1<<.5 %m3 135.0 %m3

13. Dia$am 3 so4s some ai$ +ein t$apped +2  pa$affin oil lent 8 %m.

Diagram 2

f te atmospe$i% p$essu$e is =5 %m'& dete$mine te lent of as %olumn  x and te  p$essu$e p. @ent xA%m -$essu$e pA%m' A. B. C. D.

8.0 81.0 88. 81.0

Diagram 

=0 =5 <0 =0

Wen te tempe$atu$e of te 4ate$ is 33 oC& te lent of te ai$ %olumn is 85 %m. Wat is te lent of te ai$ %olumn 4en te tempe$atu$e of te 4ate$ is 9
10.  sample of o2en as a olume of 0.08= m 3 at 31oC. t 4at tempe$atu$e 4ould te olume of  te as +e 0.035 m 3 at te same p$essu$e; A. 0oC 181oC B. 313oC C. 39oC D.

A. B. C. D.

8< %m 30 %m 38 %m 3 %m

1.  00 %m3 sample of neon is %olle%ted at 5 oC. ssumin te p$essu$e $emains %onstant& 4at 4ould +e te olume at standa$d tempe$atu$e; 33 %m3 A. B. 363 %m3 C. 5 %m3 D. =3 %m3

11. Wi% of te follo4in $aps %o$$e%tl2 $ep$esents te $elationsip +et4een te olume and te tempe$atu$e of a ien mass of as at a %onstant p$essu$e;

15. Te tempe$atu$e and olume of a as in a essel a$e T   and V   $espe%tiel2& 4e$e T   is in kelin and V   is in m 3. f te tempe$atu$e of te as is in%$eased to 3T   at %onstant p$essu$e& te olume of te as 4ill +e%ome 1 9

V 

A. 1 3

B. C. D.

18.  +alloon is filled 4it 1<0 %m 3 of as at 5 oC. Te +alloon is ten eated up suin a 4ate$ +at so tat te p$essu$e of te as is %onstant. Cal%ulate te olume of te as 4en te tempe$atu$e $ea%es 60 oC. A. 80.0 %m3 800.5 %m3 B.

V 

3V  9V 

16. Te p$essu$e of a as in a %losed %ontaine$  in%$eases 4it in%$ease in its tempe$atu$e. Wi%

2

© cikgubid

A. B. C. D.

of te follo4in does not %ont$i+ute to te in%$ease in p$essu$e; Te kineti% ene$2 of te mole%ules as in%$eased. Te elo%it2 of te mole%ules as in%$eased Te $ate of %ollision +et4een te as mole%ules and te 4all as in%$eased Te mole%ules %ollide 4it ea% ote$ mo$e $andoml2

A. B. C. D.

80. Te p$essu$e states tat te p$essu$e of a fied mass of as is di$e%tl2 p$opo$tional to its a+solute alue tempe$atu$e 4en te olume of  te as is %onstant. Wi% $aps +elo4 so4s %o$$e%tl2 te $elationsip +et4een te p$essu$e and te tempe$atu$e& in oC& of te as;

1=. Dia$am  so4s a %apilla$2 tu+e %ontainin ai$  %losed +2 a t$ead of me$%u$2 of lent  z .

Diagram 4

81. Te ai$ p$essu$e in te t2$e of a lo$$2 is 880 k-a at a tempe$atu$e of 30oC. Cal%ulate te ai$   p$essu$e in te t2$e at a tempe$atu$e of 0 oC. 83. k-a A. 88=.3 k-a B. 813.0 k-a C. D. 165.0 k-a

Te lent of te ai$ %olumn is  x 4en te tu+e is o$iBontal and te lent if  y  4en te tu+e is eld e$ti%al.  x&  y  and  z   a$e in %entimet$es. Wi% of te follo4in ep$ession is %o$$e%t; >tmospe$i% p$essu$e  =6 %m '? =6 x

=  =6

 z  +  zy

A. =6 y

105 k-a 11< k-a 188 k-a 13 k-a

88. Dia$am 5 so4s an amount of as +ein t$apped inside a metal %2linde$ +2 a piston.

=  =6

 x +  zy

B. =6 z  =  =6 y

+

 xy

C. =6 x

=  =6

 y +  zy

D.

Diagram !

1<. Wat appens if a as in a %ontaine$ is +ein %omp$essed slo4l2 at %onstant tempe$atu$e; Te p$essu$e of te as in%$eases. A. B. Te p$essu$e of te as de%$eases. C. Te ae$ae kineti% ene$2 of te mole%ules in%$eases. D. Te ae$ae kineti% ene$2 of te mole%ules de%$eases.

Te piston is initiall2 at  M   and its initial  p$essu$e is p. Wat is te as p$essu$e if te  piston is pused do4n to N ; A.

3 p 8 3

 p

B. 3

19. Te p$essu$e and tempe$atu$e of ai$ in te t2$e of  a %a$ +efo$e te sta$t of a ,ou$ne2 a$e 100k-a and 85oC. fte$ te ,ou$ne2& te tempe$atu$e of te t2$e $ises to =< oC& 4at is te p$essu$e of te t2$e no4;

8

 p

C.



© cikgubid

1 3

 p

D.

85.

83. n ai$ +u++le of olume 5 %m 3 is p$odu%ed +2 a die$ at a dept of 6 m. Wat is te olume of  te ai$ +u++le 4en it $ea%es a point 4i% is 3m +elo4 te 4ate$ su$fa%e;

>ssume te atmospe$i% e7uialent to 10 m of 4ate$? A. B. C. D.

p$essu$e

is (a)

5.85 %m3 5.5< %m3 5.<1 %m3 6.15 %m3

(") Diagram #

Dia$am 6(a so4s ai$ at 8=oC +ein kept in a %2linde$. Dia$am 6(+ a 4eit is put on te piston& and te ai$ is +ein eated to 5oC to maintain te same olume. Wi% of  te follo4in statements is not t$ue;

8. i$ at a tempe$atu$e of 8=oC is kept in a %ontaine$ at a p$essu$e of 1 atmospe$e. Wat is  p$essu$e of te ai$& in atmospe$e& if it is eated to a tempe$atu$e of == oC; A. 0.35 B. 0.<6 C. 1.1= 8.<6 D.

A. B. C. D.

4

Te elo%it2 of te ai$ mole%ules as in%$eased. Te kineti% ene$2 of te mole%ules as in%$eased. Te ai$ p$essu$e as in%$eased t4ofold. Te 4eit is used to maintain te same olume.

© cikgubid

 Structured 

86.

(a)

(") Diagram $

Dia$am =(a so4s te a$$anement of appa$atus used to inestiate te $elationsip +et4een te p$essu$e and te tempe$atu$e of a fied mass of as at %onstant olume.  $api%al $esult of p$essu$e  P  aainst tempe$atu$e& T  is so4n in Dia$am =(+. (a

n Dia$am =(+& (i 4at is te $elationsip +et4een P  and T  as so4n in te $ap;

 _________________________________________________________________________  (ii

4at is te et$apolated alue of tempe$atu$e T 0& 4en te p$essu$e& P  0;

 _________________________________________________________________________  (iii

4at is te name ien to T 0;

 _________________________________________________________________________  (+ (i Esin kineti% teo$2& eplain 42 te p$essu$e of te as inside te flask is smalle$ 4en te tempe$atu$e is de%$easin.

 _________________________________________________________________________   _________________________________________________________________________  (ii

@ist te p2si%al %a$a%te$isti%s of te as mole%ules 4en its tempe$atu$e is T 0.  _________________________________________________________________________   _________________________________________________________________________  3 × 10

(%

5

Te p$essu$e of te as in a %ontaine$ of olume& V  is  -a and its tempe$atu$e is 0 oC. (i Wat is te p$essu$e of te as if te tempe$atu$e is in%$eased to 8= oC;

 _________________________________________________________________________   _________________________________________________________________________  (ii

Wat is te ne4 p$essu$e of te as if te o$iinal %ontaine$ is %onne%ted to an empt2 %ontaine$ of olume 8V  and te tempe$atu$e of te as $emains at 0 oC;

 _________________________________________________________________________   _________________________________________________________________________  (d

Fplain o4 a as is %aned into a li7uid if it is %omp$essed unde$ i p$essu$e;

 ______________________________________________________________________________   ______________________________________________________________________________  8=. Te a$ia+les in a as a$e mass (m& tempe$atu$e (T & olume (V  and p$essu$e ( P . Te $elationsip +et4een te a$ia+les a$e ep$essed in as la4s like o2les @a4& Ca$les @a4 and -$essu$e @a4. (a /ill in te +lanks of te ta+le +elo4 4it app$op$iate as a$ia+les:

(+ Wat is te +asi% eplanation fo$ te penomenon G pressure of a gas has increased ;

 ______________________________________________________________________________   ______________________________________________________________________________  (% Ti%k te app$op$iate +oes 4it a G

to so4 te fa%to$s tat %an in%$ease te as p$essu$e:

8<. Dia$am <.1 so4s 15 %m of ai$ t$apped in a lass tu+e +2 3 %m of me$%u$2 at 8= oC.

Diagram %.1

Ten& te lass tu+e is ine$ted as so4n in Dia$am <.8.

Diagram %.2

)ien te atmospe$i% p$essu$e is =6 %m'. (a

Wat is te p$essu$e of te t$apped ai$ in te lass tu+e in Dia$am <.1;

(+

Cal%ulate te p$essu$e of te t$apped ai$ in te lass tu+e in Dia$am <.8.



(%

Dete$mine te lent of te ai$ %olumn&

(d

f te tempe$atu$e of te lass tu+e in Dia$am <.1 is in%$eased to 50 oC& %al%ulate te lent of te ai$ %olumn.

(e

*tate te as la4 applied in (i 8<(%: _________________________________  (ii

& in Dia$am <.8.

8<(d: _________________________________