Calculate the change internal energy (E) for a system that is ...

[Diane]

Calculate the change internal energy (E) for a system that is giving off 45.0 kJ of heat and is performing 855 J of work on the surroundings.
 
  A) 44.1 kJ
  B) -44.1 kJ
  C) -45.9 kJ
  D) 9.00  102 kJ
  E) -9.00  102 kJ

Question 2

When covalent bonds are broken energy is released.
 
  Indicate whether the statement is true or false

[aruss1303]

Answer to Question 1

C

Answer to Question 2

FALSE

[Diane]

Thanks

[aruss1303]

Welcome