Roboguru

Air mendidih () sebanyak 250 ml dituangkan ke dala...

Air mendidih (begin mathsize 14px style 100 degree straight C end style) sebanyak 250 ml dituangkan ke dalam panci berisi 400 ml air bersuhu begin mathsize 14px style 35 degree straight C end style. Setelah terjadi keseimbangan termal, maka suhu campuran adalah .... (kalor jenis air begin mathsize 14px style 1 space kal. gr to the power of negative 1 end exponent. degree straight C to the power of negative 1 end exponent end style)

  1. begin mathsize 14px style 40 degree straight C end style 

  2. begin mathsize 14px style 60 degree straight C end style 

  3. begin mathsize 14px style 80 degree straight C end style 

  4. undefined 

  5. begin mathsize 14px style 140 degree straight C end style 

Jawaban:

begin mathsize 14px style m subscript 1 equals 250 space ml equals 250 space gr T subscript 1 equals 100 degree straight C m subscript 2 equals 400 space ml equals 400 space gr T subscript 2 equals 35 degree straight C c equals 1 space kal. gr to the power of negative 1 end exponent. degree straight C to the power of negative 1 end exponent end style 

Ditanyakan: Suhu campuran?
Jawab:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell Q subscript l e p a s end subscript end cell equals cell Q subscript t e r i m a end subscript end cell row cell m subscript 1 c increment T subscript 1 end cell equals cell m subscript 2 c increment T subscript 2 end cell row cell open parentheses 250 close parentheses open parentheses 1 close parentheses open parentheses 100 minus T close parentheses end cell equals cell open parentheses 400 close parentheses open parentheses 1 close parentheses open parentheses T minus 35 close parentheses end cell row cell 25000 minus 250 T end cell equals cell 400 T minus 14000 end cell row cell 25000 plus 14000 end cell equals cell 400 T plus 250 T end cell row 39000 equals cell 650 T end cell row T equals cell 60 degree straight C end cell end table end style 

Jadi, jawaban yang tepat adalah B. begin mathsize 14px style bold 60 bold degree bold C end style.

0

Ruangguru

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Produk Ruangguru

Produk Lainnya

Hubungi Kami

Ikuti Kami

©2021 Ruangguru. All Rights Reserved