What would likely happen if you were to touch the flask in which an endothermic reaction occurring

What would likely happen if you were to touch the flask in which an endothermic reaction occurring

Answers

The reaction vessel will feel cool

Explanation:

In an endothermic reaction, heat is absorbed by the reaction system from the surrounding. The withdrawal of heat from the surrounding causes the reaction vessel to feel cool.

Hence when an endothermic reaction is going on, the reaction vessel feels cool when touched.

The flask would probably feel cooler than before the reaction started.

Explanation:

An endothermic reaction means that it needs heat to continue. The required heat will be taken from the flask and by touching it the reaction reactants will cause the solution contained in the flask to cool with a drop in temperature.

A. The flask would probably feel cooler than before the reaction started.

Explanation: An endothermic reaction is a type of of chemical reaction in which energy is absorbed from the surroundings. The temperature of the surrounding decreases.

An Exothermic reaction is a type of of chemical reaction in which energy is released into the surrounding. The temperature of the surrounding increases.

When an endothermic reaction takes place in the flask, the heat is absorbed by the flask and thus the temperature of the surrounding (here the flask) will decrease which can be felt by touching the outside of the test tube. Thus the flask would appear colder.

CCA Unit 3: Heat Energy and Reactions Unit Test Answers

Please keep in mind these are for CHECKING YOUR ANSWERS, not for using as an answer key to cheat!!

1. A

2. C

3. A

4. A

5. C

6. D

7. C

8. C

9. A

10. A

11. C

12. A

13. C

14. C

15. C

16. B

17. D

18. B

19. Q= = mass * specific heat * delta T 343 = 55.0 * specific heat (86.0-19.0) 343=3685 * specific heat specific heat = 0.0931 cal/g Celsius

20. Temperature is absolute while heat is relative. The direction of heat always travels to the warmer temperature of the object to the cooler one.

21. Ke=[C]^2/[A]^3[B}^2

22. A chemical reaction is spontaneous if an increase in the total entropy of the system and surroundings accompanies it.

Example:

4 Fe + 3 O 2 -> Fe 2 O 3

Enjoy guys 😉

The flask would probably feel cooler than before the reaction started.

Explanation:

The flask would probably feel cooler than before the reaction started.

Reasoning:

Endothermic is a process or reaction accompanied by or requiring the absorption of heat

The flask would probably feel cooler than
before the reaction as the endothermic
reaction takes in energy during the reaction as heat(thermal energy) from the surroundings,causing the flask to lose heat and feel cool to the touch caused by the lack of heat(thermal energy) in the flask.

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