During the first half of the 20th century, the theory of plate tectonics was developed. Evidence supporting this theory included
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Answer:
Here's what I find
Explanation:
Mercerization involves the treating of cotton fibres with NaOH solution and then drying them under tension.
The process changes the internal structure of the fibres and causes them to swell.
The advantages of mercerization are:
- Greater affinity for dyes (saves money)
- Increased tensile strength
- A high degree of lustre (better appearance)
- Greater absorption of moisture (e.g., sweat)
- Greater resistance to shrinking
Answer: at relatively low temperatures.
Explanation:
According to Gibbs equation;
= Gibb's free energy change
= enthalpy change
T = temperature
= entropy change
A reaction is spontaneous when = Gibb's free energy change is negative.
Thus
Thus the reaction is spontaneous or is negative only when
Thus the reaction is spontaneous at relatively low temperatures