Consider the following reaction where Kc = 10.5 at 350 K: 2 CH2Cl2 (g) CH4 (g) + CCl4 (g) A reaction mixture was found to contain 1.15×10-2 moles of CH2Cl2 (g), 5.11×10-2 moles of CH4 (g), and 3.61×10-2 moles of CCl4 (g), in a 1.00 liter container. Indicate True (T) or False (F) for each of the following: ___ 1. In order to reach equilibrium CH2Cl2(g) must be produced . ___ 2. In order to reach equilibrium Kc must increase . ___ 3. In order to reach equilibrium CH4 must be produced . ___ 4. Qc is less than Kc. ___ 5. The reaction is at equilibrium. No further reaction will occur.

The given reaction is:  

2CH₂Cl₂ (g) ⇒ CH₄ (g) + CCl₄ (g), the reaction Q is,  

Q = [CH₄][CCl₄]/[CH₂Cl₂]²

Based on the given question, the values of Kc is 10.5 at 350 K, and the moles of CH₂Cl₂ is 1.15 × 10⁻² moles, moles of CCl₄ is 3.61 × 10⁻² moles, and the moles of CH₄ is 5.11 × 10⁻² moles. Now putting the values we get,  

Q = (5.11 × 10⁻²) (3.61 × 10⁻²) / (1.15 × 10⁻²)²

Q = 13.95

It is evident that the value of Q is more than Kc, thus, the reaction will shift in backward direction as the concentration of products is more than the reactants.  

1. The given statement is false, as the concentration of reactant is required to increase, and the concentration of product is required to get consumed to attain equilibrium.  

2. The given statement is false, Kc or equilibrium constant is a fixed quantity, while there can be a reduction or enhancement in the Q based upon the condition.  

3. In the statement, CH₄ must be consumed not produced, it is not spell correctly. Now the given statement will become true, as to attain equilibrium the reaction is required to shift in backward direction, which is only feasible when there is consumption of the concentration of products.  

4. The given statement is false, as based on the calculations, Q > Kc.  

5. The statement is false as Q is not equal to Kc, it is greater than Kc.  

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.