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  4. In exothermic reaction, heat is

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Q. In exothermic reaction, heat is

Rajasthan PMTRajasthan PMT 2007Thermodynamics

Solution:

In exothermic reaction heat is always given out $\Delta H=\Sigma H_{p}-\Sigma H_{R}$ and for exothermic reaction $\Sigma H_{R}>\Sigma H_{P}$