Hess Law Calculations

Question

Which of the following is NOT important when carrying out Hess' Law calculations?

Question 3 options:

	the starting equations must add together to give the resultant equation
	the coefficients of the substances must be checked to ensure they are the same in both the starting equations and the resultant equation
	the states of the substances must be checked to ensure they are the same in both the starting equation and the resultant equation
	the reaction must be carried out at room temperature

Answer 1

Your choice is correct. The reaction need not be carried out at room temperature in order to use Hess' Law.