Enthalpy definitions quiz wordsearch (OCR)

HideShow resource information
S P E C I F I C H E A T C A P A C I T Y G
K P L S T N T P T D A R O M E C E K C L U
G D Q S P U G E P G S R N W I L S H A B Q
D Y C F W T W M G O M S G M C I W X E Y T
S G I X Y W R C B W X S R Y S Q O N P T C
T R M H Q Y H H S A F E C E K Y N L H C S
A E R Q G X N L W W H Y H I L O A E P A Q
N N E B P F I W Q T P T T V I H R M Y E P
D E H Y F E K B O L N D H T T G G D L E J
A N T E G R U D A Y X B A N S M B F A E V
R O O J F A N H S A M R E E Y O V V F G L
D I X X X E T O S X I D J F F R P J G T G
S T E D M N T E W P N Y U I B V V T R Q Q
T A J C E O U T S O X S P A T I Q H S M X
A V K F H S V E B P S E U S L T F K D T K
T I K P G A R A S I D A D S N K N L V T H
E T S T A N D A R D C O N D I T I O N S K
S C R M V G W E S Q F J B A Y E R W O H Y
K A T C P P W R D J F W B U B F U Y Q G L
V G G L R S S A L E I F P H W Y G G V I E
C X B Y W F X Q B R F W D U U X U J S H P

Clues

  • An example of an endothermic reaction. (think of plants). (14)
  • An example of an exothermic reaction. (think of animals). (11)
  • What are: a pressure of 100 kPa, a stated temperature 298 K or (25 degrees celsius) and a concentration of 1.0 mol per dm cubed classed as ? (8, 10)
  • What is a diagram showing alternate routes between reactants and products which allows the indirect determintation of an enthalpy change from other known enthalpy changes using Hess' law. (8, 5)
  • What is the energy required to raise the temperature of 1g of a substance by 1 degree celsius. (8, 4, 8)
  • What is the enthalpy change that takes place when breaking by homolytic fission 1 mol of a given bond in the molecules of a gaseous species. (4, 8)
  • What is the minimum energy required to start a reaction by the breaking of bonds. (10, 6)
  • What is the name of a reaction whereby the enthalpy of the products is larger than the enthalpy of the reactants ? (this causes heat to be taken in from its surroundings). (11)
  • What is the name of a reaction whereby the enthalpy of the products is smaller than the enthalpy of the reactants ? (this causes heat to be lost to its surroundings). (10)
  • What is the physical state of a substance under the standard conditions of 100 kPa (1 atmosphere) and 298 K (25 degrees celsius). (8, 5)

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Enthalpy resources »