B) What is the enthalpy change, ∆H, for this reaction? Show your work to receive full credit (5 points) The enthalpy change is 150. To find it we must subtract energy of products (200) & the energy of reactants (50) so 200 – 50 equals 150.
Explanation:
B) What is the enthalpy change, ∆H, for this reaction? Show your work to receive full credit (5 points) The enthalpy change is 150. To find it we must subtract energy of products (200) & the energy of reactants (50) so 200 – 50 equals 150.
B) What is the enthalpy change, ∆H, for this reaction. The enthalpy change is 150. To find it we must subtract energy of products (200) & the energy of reactants (50) so 200 – 50 equals 150
There is positive and negative work being done here. Negative work is when the force and displacement are in opposite directions (antiparallel vectors). Since the box moves downhill, following that component of gravity, gravity does positive work, friction (always) does negative work on the object.
