Question

$C_4{H}_{10}\left(g\right)+\frac{13}{2}{O}_2\left(g\right)⟶4C{O}_2\left(g\right)+5H_{2}O\left(l\right);\Delta H=-2878kJ$
$\Delta H$ is the heat of combustion of butane gas.If true enter 1 else 0

• A. 1

Answer 1

The correct option is A 1
The heat of combustion is the amount of heat evolved when one mole of the substance is completely burnt in air or oxygen.
$C_4{H}_{10}\left(g\right)+\frac{13}{2}{O}_2\left(g\right)⟶4C{O}_2\left(g\right)+5H_{2}O\left(l\right);\Delta H=-2878kJ$
In the above reaction, 1 mole of butane undergoes combustion. Hence, $\Delta H$ is the heat of combustion of butane gas.