Energy Changes in Reactions

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Test your knowledge on exothermic and endothermic reactions.

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Hafsa Syeda

Reino Unido

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Energy Changes in ReactionsVersión en línea Test your knowledge on exothermic and endothermic reactions. por Hafsa Syeda 1 What term describes a reaction that releases energy as heat? a Isothermal b Endothermic c Exothermic d Calorimetric 2 Which reaction absorbs heat from its surroundings? a Exothermic b Exergonic c Endothermic d Catalytic 3 In an exothermic reaction, do the surroundings get warmer or cooler? a Depends on the substance b Warmer c Cooler d No change 4 What happens to the temperature of the surroundings in an endothermic reaction? a It fluctuates wildly b It increases c Remains constant d It decreases 5 Which process is typical of energy absorption in chemistry? a Sublimation releases heat b Water freezing releases heat c Condensing gas releases heat d Melting ice requires heat 6 What is the sign of the enthalpy change for an exothermic reaction? a Zero b Negative c Undefined d Positive 7 Which term describes a reaction that gives off heat? a Endergonic b Isothermal c Exothermic d Endothermic 8 Which is a common example of an endothermic process? a Freezing water b Hand-warmers c Combustion of wood d Photosynthesis

Energy Changes in ReactionsVersión en línea

Test your knowledge on exothermic and endothermic reactions.

por Hafsa Syeda

What term describes a reaction that releases energy as heat?

Isothermal

Endothermic

Exothermic

Calorimetric

Which reaction absorbs heat from its surroundings?

Exothermic

Exergonic

Endothermic

Catalytic

In an exothermic reaction, do the surroundings get warmer or cooler?

Depends on the substance

Warmer

Cooler

No change

What happens to the temperature of the surroundings in an endothermic reaction?

It fluctuates wildly

It increases

Remains constant

It decreases

Which process is typical of energy absorption in chemistry?

Sublimation releases heat

Water freezing releases heat

Condensing gas releases heat

Melting ice requires heat

What is the sign of the enthalpy change for an exothermic reaction?

Zero

Negative

Undefined

Positive

Which term describes a reaction that gives off heat?

Endergonic

Isothermal

Exothermic

Endothermic

Which is a common example of an endothermic process?

Freezing water

Hand-warmers

Combustion of wood

Photosynthesis

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Energy Changes in Reactions

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Energy Changes in ReactionsVersión en línea

por Hafsa Syeda

What term describes a reaction that releases energy as heat?

Which reaction absorbs heat from its surroundings?

In an exothermic reaction, do the surroundings get warmer or cooler?

What happens to the temperature of the surroundings in an endothermic reaction?

Which process is typical of energy absorption in chemistry?

What is the sign of the enthalpy change for an exothermic reaction?

Which term describes a reaction that gives off heat?

Which is a common example of an endothermic process?

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