Question

how can I identify whether heat is evolving in reaction or not??​

Answer 1

hey mate ur answer is presented here =

What happens when a reaction is heated?

It takes energy to break a chemical bond but energy is released when chemical bonds are formed. ... On the other hand if the reaction consumes more energy than it releases then the reaction absorbs heat and is said to be endothermic. Most reactions are exothermic

How do you calculate heat evolved in a reaction?

• Enthalpy of Solution (Heat of Solution) Example
• Calculate the heat released, q, in joules (J), by the reaction: q = mass(water) × specific heat capacity(water) × change in temperature(solution) ...
• Calculate the moles of solute (NaOH(s)): moles = mass ÷ molar mass. ...
• Calculate the enthalpy change, ΔH, in kJ mol-1 of solute

this information may not be accurate but i wish that this helps u.

#and asim 07 giving all wrong answer and what interesting u find in me plz mere respect ki dhajya mat uda..

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