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vodomira [7]
3 years ago
10

Maria just got her driver's license and is driving to school for the first time. Which of the following would demonstrate that e

nergy causes change?
Group of answer choices


A.She is stopped at a red light.


B.She is parked in her assigned parking space.


C.She pushes the gas pedal when the light turns green.


D.She is stopped waiting for some students to cross the street
(SCIENCE NOT CHEMISTRY) ;-;
Chemistry
1 answer:
musickatia [10]3 years ago
5 0
I think it is c bc that the only one I see right
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Answer:

Molar heat of solution of KBr is 20.0kJ/mol

Explanation:

Molar heat of solution is defined as the energy released (negative) or absorbed (Positive) per mole of solute being dissolved in solvent.

The dissolution of KBr is:

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In the calorimeter, the temperature decreases 0.370K, that means the solution absorbes energy in this process. The energy is:

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Thus, molar heat of solution of KBr is:

0.5032kJ / 0.0252moles = <em>20.0kJ/mol</em>

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