What Is the Enthalpy Change (In KJ)of a Chemical Reaction

question 65

Multiple Choice

What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL of solution having a density of 1.25 g mL^-1
By 10.2 °C?
(The specific heat of the solution is 3.733 J g^-1k^-1. )

• A)-7.43 kJ
• B)-12.51 kJ
• C)8.20 kJ
• D)-11.9 kJ
• E)6.51 kJ

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Definitions:

Sensory Receptor

A specialized cell or cell structure that responds to external stimuli by sending signals to the nervous system, enabling perception of sensory information.

Deep Pressure

A form of tactile sensory input which involves the application of firm but gentle squeezes, hugs, or holding that calms the nervous system.

Light Touch

A sensory stimulus that is gentle and not forceful, often used in medical examinations to assess neurological function.

Sensory Receptors

Specialized cells or structures that detect external or internal environment stimuli and convert them into electrical impulses.