Circle any of the following statements are NOT true? A) The internal energy of a system is the sum of all energy in the system.
B) Heat entering a system is given a positive sign.
C) The internal energy of a system is equal to heat plus work.
D) The internal energy of a system is not a state function.
E) Work being done by the system onto the surroundings is given a positive sign.

What is the percentage of hydrogen in c2h4

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

0.88 moles of n2o5 (g) was placed in a sealed 1.00 l vessel. calculate the equilibrium concentration of n2o5. no2, and o2 and the equilibrium constant after equilibrium has been reached by 65.0% of the n2o5 decomposing.