Question

2. Write the following statement as True/false
1. An exothermic reaction is characterized by the positive value of ∆H
2. Heat is evolved when an exothermic reaction occurs
3. An endothermic reaction is characterized by the positive value of ∆H
4. The reaction vessel becomes hot when an endothermic reaction occurs
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Answer 1

Answer:

1. False

2. False

3. True

4. True

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Answer 2

it's

False

True

True

True

explaination:

2)during exothermic heat is evolved during the reaction

4)An endothermic reaction absorbs heat from the surroundings. thus the vessel gets hot