1. Mechanical weathering
2. Reactions with oxygen
3. A rock that has been changed into one or more new compounds
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Answer:
228.7
Explanation:
According to Boyle's law
P1V1 = P2V2
where P1& P2 are initial and final pressure
and V1& V2 and initial and final volumes respectively.
Given:
P1 = 136atm, P2 = 131.6atm
V1 = 142
; V2 = ?
V2 =
= 
= 146.7
Total volume, V = V1 + V2
=146.7 + 142
<u>= 228.7</u>
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The reaction will be spontaneous if Gibb free energy is negative, according the following relation:
G = H - T*S
where G is Gibbs free energy, T is change of enthalpy , T is temperature and S is change of entropy
In the case of ammonia:
G = -93000 - 356*(-198) = -93000 + 70488 = -22512 j/mol
As G < 0 then the reaction is spontaneous.
A. Moss is an example of a nonvascular plant