The enthalpy of combustion of methane at 250Cis 990-the amout of heat liberated when 4-2g of methane is burnt in air

CH4 + 2O2 â†’ CO2 + 2H2O(1 mole of CH4 is 16g)Heat released on burning of 16g CH4 = 990 KJ/molHeat released on burning 4.2g of CH4 = 990*4.2/16= 259.87 KJ/mol ...

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Byju's Answer

Standard IX

Chemistry

Methane

the enthalpy ...

Question

the enthalpy of combustion of methane at 25⁰Cis 990.the amout of heat liberated when 4.2g of methane is burnt in air

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Solution

CH4 + 2O2 â†’ CO2 + 2H2O
(1 mole of CH₄ is 16g)
Heat released on burning of 16g CH₄= 990 KJ/mol
Heat released on burning 4.2g of CH4 = 990*4.2/16
= 259.87 KJ/mol

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the enthalpy of combustion of methane at 250Cis 990.the amout of heat liberated when 4.2g of methane is burnt in air

CH4 + 2O2 â†’ CO2 + 2H2O(1 mole of CH4 is 16g)Heat released on burning of 16g CH4 = 990 KJ/molHeat released on burning 4.2g of CH4 = 990*4.2/16= 259.87 KJ/mol

the enthalpy of combustion of methane at 25⁰Cis 990.the amout of heat liberated when 4.2g of methane is burnt in air

CH4 + 2O2 â†’ CO2 + 2H2O
(1 mole of CH₄ is 16g)
Heat released on burning of 16g CH₄= 990 KJ/mol
Heat released on burning 4.2g of CH4 = 990*4.2/16
= 259.87 KJ/mol