Machine-translated by Google. Questions are authored in English.
Top

Discussion

The number of independent balances for a non-reacting unit with n species is

  • A.n minus one
  • B.two n
  • C.n
  • D.n plus one

Answer: C

Each species gives one balance, and the total is their sum rather than an extra. Counting the total as an additional equation is the commonest reason a degrees of freedom analysis comes out wrong. Any one of the balances may be swapped for the total.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.