Chemistry, asked by aishu1088, 1 year ago

1g of anhydrous oxalic acid is burnt at 25C,the amount of heat liberated is 2.835kJ.determine H combustion

Answers

Answered by Arjunsharma365
16
As per definition, Heat of Combustion of a substance is the heat liberated when 1 mole of the substance undergoes complete combustion with oxygen at constant pressure. 

molar mass of H2C2O4 is 90.03 g mol−1 (As per Wikipedia) 

1g of anhydrous oxalic acid is burnt at 25 °C , the amount of heat liberated is 2.835 kJ 
then when 90.03 g of anhydrous oxalic acid is burnt at 25 °C , the amount of heat liberated is 2.835*90.03= 255.23 kJ 

So heat of Combustion is 255.23 kJ/mole
hope it helps u!!!!
Answered by bhupesh4464
1

Answer:

-255.15kJ

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