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Thermodynamics: JEE Mains 2022 June 29 Shift 1

Easy· Hess's law and enthalpies of reaction· +4 / 0

17.0\ \text{g}

of

\mathrm{NH_3}

completely vapourises at

-33.42^\circ\text{C}

and

1

bar pressure and the enthalpy change in the process is

23.4\ \text{kJ mol}^{-1}

. The enthalpy change for the vapourisation of

85\ \text{g}

of

\mathrm{NH_3}

under the same conditions is ______ kJ.

Your answer (numerical)

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