A certain material has a density of 0.2 g/ml is this material good for building a bridge or for making cushions for a couch
1 answer:
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Answer:
6.8 × 10⁻⁴ mol/L.atm
Explanation:
Step 1: Given data
Solubility of nitrogen gas at 25°C (S): 4.7 × 10⁻⁴ mol/L
Partial pressure of nitrogen gas (P): 522 mmHg
Step 2: Convert the partial pressure of nitrogen to atm
We will use the relationship 1 atm = 760 mmHg.
Step 3: Calculate the value of the Henry's Law constant (k)
We will use Henry's law.
Answer : (C) The heat of fusion for water is the amount of energy needed for water to melt.
Explanation :
Heat of fusion : It is calculate the amount of energy required for melting of a substance to change its states from solid to liquid at constant pressure.
Fusion is a process in which phase changes from solid to liquid.
In case of water, the solid ice converted into liquid water by the process of melting.
The reaction of phase changes in water is,