Use the reaction I2(s) I2(g), H = 62.4 kJ/mol, S = 0.145 kJ/(molK) At what temperature is the reaction at equilibrium?
A.157K
B.430K
C.0.002K
D.62K

B. 430 K

Explanation:

According to Gibb's equation:

= Gibbs free energy  

= enthalpy change  = +62.4 kJ/mol

= entropy change  = +0.145 kJ/molK

T = temperature in Kelvin

 = +ve, reaction is non spontaneous

 = -ve, reaction is spontaneous

 = 0, reaction is in equilibrium

for reaction to be spontaneous

Thus the Reaction is spontaneous when temperature is 430 K.

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

there is none because earth is stationary and flat.