Roboguru

Diketahui reaksi :   Hitunglah  reksi dari reaks...

Diketahui reaksi :

begin mathsize 14px style H subscript 2 O open parentheses italic l close parentheses yields H subscript 2 open parentheses italic g close parentheses and begin inline style 1 half end style O subscript 2 open parentheses italic g close parentheses space increment H equals 285 comma 76 space kJ H subscript 2 open parentheses italic g close parentheses plus begin inline style 1 half end style O subscript 2 open parentheses italic g close parentheses yields H subscript 2 O open parentheses italic g close parentheses space increment H equals minus sign 241 comma 84 space kJ H subscript 2 O open parentheses italic l close parentheses yields H subscript 2 O open parentheses italic s close parentheses space space space space space space space space space space space space space space space increment H equals minus sign 5 comma 85 space kJ end style 

Hitunglah begin mathsize 14px style increment H end style reksi dari reaksi 

begin mathsize 14px style H subscript 2 O open parentheses italic s close parentheses yields H subscript 2 O open parentheses italic g close parentheses end style 

Jawaban:

Susun ulang persamaan diatas agar dihasilkan persamaan reaksi H2O (s) menjadi H2O (g)

begin mathsize 14px style H subscript 2 O open parentheses italic s close parentheses yields H subscript 2 O open parentheses italic l close parentheses space space space space space space space space space space space space space space space increment H equals plus 5 comma 85 space kJ H subscript 2 O open parentheses italic l close parentheses yields H subscript 2 open parentheses italic g close parentheses and begin inline style 1 half end style O subscript 2 open parentheses italic g close parentheses space increment H equals plus 285 comma 76 space kJ H subscript 2 open parentheses italic g close parentheses plus begin inline style 1 half end style O subscript 2 open parentheses italic g close parentheses yields H subscript 2 O open parentheses italic g close parentheses space increment H equals minus sign 241 comma 84 space kJ end style 

Total perubahan entalpi menjadi,

begin mathsize 14px style increment H equals 5 comma 85 plus 285 comma 76 minus sign 241 comma 84 space space space space space space equals 49 comma 77 space kJ end style 

Jadi begin mathsize 14px style increment H end style reaksi dari reaksi begin mathsize 14px style H subscript 2 O open parentheses italic s close parentheses yields H subscript 2 O open parentheses italic g close parentheses end style adalah 49,77 kJ

 

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