The burning of 20 g of SiH 4 (MW= 32.8)at constant pressure gives off 927 k) of heat. Calculate AH for this reaction.(MW SIH4(g) + 202(9) → SiO2(s) + 2H20() a. -2476 kJ/mol rxn O b.-4340 kJ/mol rxn O c. +4340 kJ/mol rxn O d.-47.2 kJ/mol rxn O e. -1520 kJ/mol rxn

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The burning of 20 g of SiH 4 (MW= 32.8)at constant pressure gives off 927 k) of heat. Calculate AH for this reaction.(MW
SIH4(g) + 202(9) → SiO2(s) + 2H20()
a. -2476 kJ/mol rxn
O b.-4340 kJ/mol rxn
O c. +4340 kJ/mol rxn
O d.-47.2 kJ/mol rxn
O e. -1520 kJ/mol rxn
Transcribed Image Text:The burning of 20 g of SiH 4 (MW= 32.8)at constant pressure gives off 927 k) of heat. Calculate AH for this reaction.(MW SIH4(g) + 202(9) → SiO2(s) + 2H20() a. -2476 kJ/mol rxn O b.-4340 kJ/mol rxn O c. +4340 kJ/mol rxn O d.-47.2 kJ/mol rxn O e. -1520 kJ/mol rxn
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