The physical properties used by scientists to describe all matter, sight, smell, taste, color, texture, mass, weight, volume, and density.
Answer: C) It increases with a decrease in the concentration of
. D) It decreases with increase in the concentration of
.
Explanation: According to Le Chatelier's principle, if an equilibrium reaction is disturbed, the reaction would try to undo the change imposed.
Thus if the concentration of the products in increased, the reaction would shift in a direction where the concentration of products is decreasing i.e in backward direction.
If the concentration of the products in decreased, the reaction would shift in a direction where the concentration of products is increasing i.e in forward direction.
When the concentration of either of the products, i.e
or
is increased, the reaction will shift in backward direction and the rate of forward direction decreases.
Answer:
The value of entropy change for the process 
Explanation:
Mass of the ideal gas = 0.0027 kilo mol
Initial volume
= 4 L
Final volume
= 6 L
Gas constant for this ideal gas ( R ) = 
Where
= Universal gas constant = 8.314 
⇒ Gas constant R = 8.314 × 0.0027 = 0.0224 
Entropy change at constant temperature is given by,

Put all the values in above formula we get,
![dS = 0.0224 log _{e} [\frac{6}{4}]](https://tex.z-dn.net/?f=dS%20%3D%200.0224%20%20log%20_%7Be%7D%20%5B%5Cfrac%7B6%7D%7B4%7D%5D)
This is the value of entropy change for the process.
Answer:
B) Earth and all the other planets orbit the Sun.
Explanation:
A) This one is basically what people used to think, that the sun and other planets orbited around Earth. We know now that this is not true.
C) We know that no planets orbit around Earth.
D) The Sun does not orbit around Earth, the Earth orbits around the Sun.