(A) The combustion reaction is $CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$ with $\Delta H = -891 \ kJ/mol$.This means $1 \ mol$ of $CH_4$ $(16 \ g)$ releas

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(A) The combustion reaction is $CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O$ with $\Delta H = -891 \ kJ/mol$.This means $1 \ mol$ of $CH_4$ $(16 \ g)$ releases $891 \ kJ$ of heat.To release $445 \ kJ$ of heat,the amount of $CH_4$ required is:$n = \frac{445 \ kJ}{891 \ kJ/mol} \approx 0.5 \ mol$.The mass of $CH_4$ required is $0.5 \ mol \times 16 \ g/mol = 8 \ g$.

Class 11 Chemistry Some Basic Concepts of Chemistry Chemical stoichiometry

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The heat of combustion of methane is given by the following equation. How many grams of methane are required to produce $445 \ kJ$ of heat (in $g$)?
$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \ (\Delta H = -891 \ kJ/mol)$

A
$8$
B
$10$
C
$12$
D
$22$

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Some Basic Concepts of Chemistry

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Chemical stoichiometry

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The heat of combustion of methane is given by the following equation. How many grams of methane are required to produce $445 \ kJ$ of heat (in $g$)?$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \ (\Delta H = -891 \ kJ/mol)$

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$A$ pre-weighed vessel was filled with oxygen at $N.T.P.$ and weighed. It was then evacuated,filled with $SO_2$ at the same temperature and pressure,and again weighed. The weight of oxygen will be

In the balanced combustion reaction of $1 \, mol$ of $C_xH_{2n-2}$ hydrocarbon,the coefficients of $O_2$,$CO_2$,and $H_2O$ will be respectively ...

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The heat of combustion of methane is given by the following equation. How many grams of methane are required to produce $445 \ kJ$ of heat (in $g$)?
$CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \ (\Delta H = -891 \ kJ/mol)$