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Chemistry
What is the true regarding complete combustion of gaseous isobutane‐
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Q. What is the true regarding complete combustion of gaseous isobutane‐
NTA Abhyas
NTA Abhyas 2020
Thermodynamics
A
$\Delta H=\Delta E$
B
$\Delta H>\Delta E$
C
$\Delta H=\Delta E=0$
D
$\Delta H < \Delta E$
Solution:
$C_{4}H_{10}\left(g\right)+6.5O_{2}\left(g\right) \rightarrow 4CO_{2}\left(g\right)+5H_{2}O_{\left(\right. l \left.\right)}$
$\Delta n=\left[4 - 7.5\right]=-3.5$
$\Delta H=\Delta E+\Delta n_{g}\text{RT}$
$\therefore \, \, \Delta H < \Delta E$