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Diketahui data berikut. Tentukan perubahan entalpi dari reaksi berikut : NH 3 ( g ) ​ + HCl ( l ) ​ → NH 4 ​ Cl ( s ) ​

Diketahui data berikut.
increment H subscript c superscript degree space atom space karbon space space space space space space space space space space space space equals minus sign 393 comma 5 space kJ space mol to the power of negative sign 1 end exponent increment H subscript c superscript degree space gas space hidrogen space space space space space space space space space space space equals minus sign 241 comma 8 space kJ space mol to the power of negative sign 1 end exponent increment H subscript c superscript degree space gas space nitrogen space space space space space space space space space space space space equals plus 81 comma 6 space kJ space mol to the power of negative sign 1 end exponent increment H subscript f superscript degree space N H subscript 4 Cl space space space space space space space space space space space space space space space space space space space space space space equals minus sign 314 comma 4 space kJ space mol to the power of negative sign 1 end exponent increment H subscript f superscript degree space C H subscript 3 C O O H space space space space space space space space space space space space space space space equals minus sign 487 comma 0 space kJ space mol to the power of negative sign 1 end exponent increment H subscript f superscript degree space N H subscript 4 N O subscript 3 space space space space space space space space space space space space space space space space space space space equals minus sign 365 comma 6 space kJ space mol to the power of negative sign 1 end exponent increment H subscript d superscript degree space Ca O space space space space space space space space space space space space space space space space space space space space space space space space space equals plus 635 comma 5 space kJ space mol to the power of negative sign 1 end exponent increment H subscript d superscript degree space N H subscript 3 space space space space space space space space space space space space space space space space space space space space space space space space space equals plus 46 comma 19 space kJ space mol to the power of negative sign 1 end exponent increment H subscript d superscript degree space H Cl space space space space space space space space space space space space space space space space space space space space space space space space space space equals plus 92 comma 3 space kJ space mol to the power of negative sign 1 end exponent

Tentukan perubahan entalpi dari reaksi berikut :  
 

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R. Rizki

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

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Pembahasan

Persamaan reaksi : Maka, dari reaksi tersebut adalah .

Persamaan reaksi :

N H subscript 3 space open parentheses g close parentheses end subscript space plus space H Cl subscript open parentheses l close parentheses end subscript space yields N H subscript 4 Cl subscript open parentheses s close parentheses end subscript 

increment H subscript reaksi space equals increment H subscript f space produk end subscript superscript degree space minus sign space increment H subscript f space reaktan end subscript superscript degree space space space space space space space space space space space space space space equals left parenthesis minus sign 314 comma 4 space kJ space mol to the power of negative sign 1 end exponent right parenthesis space minus sign space left parenthesis minus sign 46 comma 19 space kJ space mol to the power of negative sign 1 end exponent space plus space left parenthesis minus sign 92 comma 3 space kJ space mol to the power of negative sign 1 end exponent right parenthesis right parenthesis space space space space space space space space space space space space space space equals minus sign 175 comma 91 space kJ space mol to the power of negative sign 1 end exponent 

Maka, increment H dari reaksi tersebut adalah negative sign 175 comma 91 space kJ space mol to the power of negative sign 1 end exponent.blank subscript blank

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