True and false chemistry question?

1. For a reaction in a sealed, rigid container, 螖H is always greater than 螖E.





a. TRUE





b. FALSE








2. For real gases, PV %26lt; nRT, always.





a. TRUE





b. FALSE





3. For real gases, PV %26gt; nRT, always.





a. TRUE





b. FALSE





4. According to the postulates of kinetic-molecular theory, the molecules of all gases at a given temperature have the same average speed.





a. TRUE





b. FALSE





5. Chemical reactions generally reach equilibrium because one of the reactants is used up.





a. TRUE





b. FALSETrue and false chemistry question?
1. False - 螖H should be equal to 螖E in a sealed, rigid container, since no work can be done, and work is what distinguishes the two.


2. False - For real gases, PV doesn't equal nRT very often, as it does for an ideal gas, but for no gas is it always less than or always greater than nRT.


3. False - Same as above


4. True


5. False - Chemical reactions reach equilibrium because... you know, I really don't know why. I think since the products want to decompose back into the reactants. But anyway, it isn't because one of the reactants is used up; that's not called an equilibrium.





Geez, what's with all these trolls?True and false chemistry question?
For a reaction in a sealed, rigid container, 螖H is always greater than 螖E.





a. TRUE





2. For real gases, PV %26lt; nRT, always.





b. FALSE





3. For real gases, PV %26gt; nRT, always.





b. FALSE





4. According to the postulates of kinetic-molecular theory, the molecules of all gases at a given temperature have the same average speed.





a. TRUE





5. Chemical reactions generally reach equilibrium because one of the reactants is used up.





b. FALSE
1.) TRUE


2.) FALSE


3.) FALSE


4.) FALSE


5.) TRUE