Which correctly lists the following in order of increasing entropy? i. 1 mol of HCl (g) at 50 ° C ii. 1 mol of NaCl (s) at 25 ° C iii. 2 mol of HCl (g) at 50 ° C iv. 1 mol of HCl (g) at 25 ° C View Available Hint(s)

1 mol of NaCl(s) at < 1 mol of HCl(g) at < 1 mol of HCl(g) at < 2 mol of HCl(g) at

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from  an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

More number of moles has more randomness and thus has higher entropy. As gaseous form has more randomness and thus has more entropy than solid form. Higher temperature leads to increase in kinetic energy and thus randomness increases and has higher entropy.

Thus the increasing order of entropy is : 1 mol of NaCl(s) at < 1 mol of HCl(g) at < 1 mol of HCl(g) at < 2 mol of HCl(g) at

can you attach a picture of the lettuce? : )

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.