Heres your great lovley answer that you need
Answer:
hey but the person at the top is right
Answer:
The pressure is 
The temperature is 
Explanation:
Generally Gibbs free energy is mathematically represented as

Where E is the enthalpy
PV is the pressure volume energy (i.e PV energy)
S is the entropy
T is the temperature
For stability to occur the Gibbs free energy must be equal to zero
Considering Diamond
So at temperature of T = 300 K

making P the subject

Now substituting 300 K for T , 2900 J for E ,
for V and
for S


The negative sign signifies the direction of the pressure
Given that 
making T the subject

Substituting into the equation


When a helicopter engine spins the main rotor, it generates torque (see How a Helicopter Works), an equal and opposite reaction. Torque makes it so that the engine itself wants to spin.