Endothermic and Exothermic Graphs

This is when heat is absorbed, it is an

• Exothermic reaction

• endothermic reaction

• both

• none

Tags

NGSS.HS-PS1-4

Is photosenthysis an Exothermic or an Endothermic reaction?

• Endothermic

• Exothermic

Tags

NGSS.HS-LS1-5

O_2\left(g\right)\ +\ 2\ H_2\ \left(g\right)\ \rightarrow\ 2\ H_2O\ \left(g\right)\ +\ Energy

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

• endothermic reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4

NGSS.HS-LS1-5

A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?

• It is an exothermic reaction

• It is an endothermic reaction

Tags

NGSS.HS-PS1-4

When heat is released it is an

• exothermic reaction

• endothermic reaction

• both

• none

Tags

NGSS.HS-PS1-4

A melting ice cube is an example of

• exothermic

• endothermic

• none

• both

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following graphs represents an endothermic reaction?

• A graph with products at a higher energy level than reactants

• A graph with reactants at a higher energy level than products

• A graph with a flat line indicating no energy change

• A graph with fluctuating energy levels

In an exothermic reaction graph, what does the peak represent?

• The activation energy required to start the reaction

• The energy released during the reaction

• The energy absorbed during the reaction

• The equilibrium point of the reaction

What is the main difference between endothermic and exothermic reaction graphs?

• Endothermic graphs show energy absorption, exothermic show energy release

• Endothermic graphs show energy release, exothermic show energy absorption

• Both show energy absorption

• Both show energy release

Tags

NGSS.HS-PS1-4