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Massa jenis gas ideal pada suhu mutlak  dan tekana...

Massa jenis gas ideal pada suhu mutlak begin mathsize 14px style italic T subscript 1 end style dan tekanan begin mathsize 14px style P subscript 1 end style sebesar begin mathsize 14px style 30 space begin inline style bevelled g over cm cubed end style end style. Jika tekanan dijadikan 2 kali semula dan suhunya dinaikkan begin mathsize 14px style begin inline style 3 over 5 end style italic T subscript 1 end style, berapakah massa jenis gas sekarang?

Jawaban:

Diketahui :

begin mathsize 14px style italic T subscript 1 equals italic T subscript 1 P subscript 1 double bond P subscript 1 italic rho subscript 1 equals 30 space begin inline style bevelled g over cm cubed end style P subscript 2 equals 2 P subscript 1 italic T subscript 2 equals begin inline style bevelled 3 over 5 end style italic T subscript 1 end style 

 

Pembahasan :

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator P subscript 1 V subscript 1 over denominator italic T subscript 1 end fraction end cell equals cell fraction numerator P subscript 2 V subscript 2 over denominator italic T subscript 2 end fraction end cell row cell fraction numerator P subscript 1 italic m over italic rho subscript 1 over denominator italic T subscript 1 end fraction end cell equals cell fraction numerator P subscript 2 italic m over italic rho subscript 2 over denominator italic T subscript 2 end fraction end cell row cell fraction numerator P subscript 1 over denominator italic T subscript 1 italic rho subscript 1 end fraction end cell equals cell fraction numerator P subscript 2 over denominator italic T subscript 2 italic rho subscript 2 end fraction end cell row cell fraction numerator P subscript 1 over denominator italic T subscript 1 left parenthesis 30 right parenthesis end fraction end cell equals cell fraction numerator 2 P subscript 1 over denominator 3 over 5 italic T subscript 1 italic rho subscript 2 end fraction end cell row cell italic rho subscript 2 end cell equals cell 10 over 3 left parenthesis 30 right parenthesis end cell row cell italic rho subscript 2 end cell equals cell 100 space begin inline style bevelled g over cm cubed end style end cell end table end style 

Jadi, masa jenis gas sekarang sebesar begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row blank blank 100 end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank space end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell bevelled g over cm cubed end cell end table end style 

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