introduction to energy changes

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Fireworks release energy in form of

Fireworks release energy in form of
  • A. heat
  • B. light
  • C. sound
  • D. All of Above
  • Correct Answer: Option D

Change in energy between a chemical reaction and surroundings at constant temperature is called

Change in energy between a chemical reaction and surroundings at constant temperature is called
  • A. enthalpy change
  • B. enthalpy
  • C. enthalpy profile
  • D. dynamic enthalpy
  • Correct Answer: Option A

Kilojoules per mole is unit of

Kilojoules per mole is unit of
  • A. bond energy
  • B. enthalpy change
  • C. density
  • D. volume
  • Correct Answer: Option B

Symbol for enthalpy is

Symbol for enthalpy is
  • A. E
  • B. H
  • C. P
  • D. Y
  • Correct Answer: Option B

In enthalpy profile diagram, reactants and products are represented on

In enthalpy profile diagram, reactants and products are represented on
  • A. z-axis
  • B. x-axis
  • C. y-axis
  • D. both B and C
  • Correct Answer: Option C