Question

instrument measuring heat changes at constant pressure​

Answer 1

Answer:

Constant Pressure Calorimetry. Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter.

Answer 2

Answer:

A constant-pressure calorimeter measures the change in enthalpy ( [latex]\Delta H[/latex] ) of a reaction occurring in solution, during which the pressure remains constant. Under these conditions, the change in enthalpy of the reaction is equal to the measured heat.

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