Question

What must be the delta G and delta H ( choose among >, < or =) of the decomposition of an ideal fuel for the control jet of a space vehicle? For controlling a jet vehicle, it is ideal for the fuel to release heat as it is consumed and the process must be spontaneoous.

Answer 1

Answer:

ΔG < 0 and ΔH < 0

Explanation:

The sign of the  ΔG , determines whether the reaction is Spontaneous or non Spontaneous or at equilibrium ,  

i.e. ,  

if  

• ΔG < 0 , the reaction is Spontaneous  .

• ΔG > 0 , the reaction is non Spontaneous  .

• ΔG = 0 , the reaction is at equilibrium .

Hence ,

as the reaction is spontaneous , the value for ΔG < 0 ,

And , for controlling a jet vehicle , the heat is getting released, ΔH is negative  , i.e. , ΔH < 0