What units are used to measure vacuum? A) In reciprocal psi ...

[student77]

What units are used to measure vacuum?
 
  A) In reciprocal psi (1/psi) B) In inches of mercury
  C) In negative pascals (-p) D) In negative psi (-psi)

Question 2

Calculate the amount of heat required to change 5 lb of 212F water to steam.
 
  A) 5 lb  970 BTU/lb = 4,850 BTU
  B) The amount of heat required cannot be calculated without knowing the starting temperature of the water.
  C) 5 lb  212F  1 BTU/lb = 1,060 BTU
  D) No extra heat is required because the water is already at the boiling point.

[diesoon]

Answer to Question 1

B

Answer to Question 2

A

[student77]

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[diesoon]

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