Enthalpy of Reaction

C+ O₂ --> CO₂ + 60kJ

what is the ΔH for the reaction?

• +60

• -60

• there is no way to know

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

How do you calculate Enthalpy of a reaction?

• ΔH = ΔH_products - ΔH_reactants

• ΔT = q / mC

• ΔG = ΔH -TΔS

• E = mc²

Endothermic reactions feel

• warm
• cold

Tags

NGSS.HS-PS1-4

Which symbol represents Enthalpy change?

• ΔH

• ΔT

• ΔG

• ΔS

What type of reaction is shown in the graph?

• endothermic reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4

ΔH value in an endothermic reaction is a positive number.

• True
• False

If ΔH is positive, heat would be shown on the _____ side of the thermochemical equation.

• Reactant
• Product

Tags

NGSS.HS-PS1-4

The diagram represents which type of reaction

• endothermic
• exothermic

Tags

NGSS.HS-PS1-4

• -200 KJ

• 200 KJ

• 400 KJ

• -300 KJ

Tags

NGSS.HS-PS1-4

What is the change in energy of the system?

2 NH₃(g) + 2 O₂ (g) → N₂O(g) + 3 H₂O(g)

• -549 KJ/mol

• 549 KJ/mol

• -1229 KJ/mol

• 1229 KJ/mol

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1