QJEEM21Cha148: JEE Main 2021 Chemistry - Class 11 JEEM21Cha148 Solution: If the standard molar enthalpy change for combustion of…

Question

Verified Solution • 2025–26 Session moderate

If the standard molar enthalpy change for combustion of graphite powder is

-

2.48

\times

10² kJ mol^{$-$ 1}, the amount of heat generated on combustion of 1 g of graphite powder is ___________ kJ. (Nearest integer)

Accepted Answer

1 mol graphite = 12 gm C

For 1 g of graphite =

{{248} \over {12}}

= 20.67 kJ/gm heat evolved.

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