Molecules with large molecular weights will not have potential inhalation hazards.
It is because molecules that have large molecular masses will also have a high boiling point. Now boiling point and vapor pressure are inversely related. So the vapor pressure of such molecules will be very low. Hence, there will no vapors available for inhalation.
A high molecular weight will increase the effective resistance of the fabric. The better diploma of entanglement manner that will rupture, the more polymer bonds need to be broken, because of this, the polymer can take in more electricity earlier than failing. Excessive molecular weight will increase the chemical resistance - to some extent.
Hence, these will not cause inhalation hazards.
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Option D for sure as it includes the phrase calorie which is a measure of energy.
Answer:
C- transforemed or changed
Explanation:
matter can be changed by application of heat or cold
Answer:
LiCl = 0.492 m
Explanation:
Molal concentration is the one that indicates the moles of solute that are contained in 1kg of solvent.
Our solute is lithium chloride, LiCl.
Our solvent is distilled water.
We do not have the mass of water, but we know the volume, so we should apply density to determine mass.
Density = mass / volume
Density . volume = mass
1 g/mL . 19.7 mL = 19.7 g
We convert g to kg → 19.7 g . 1 kg / 1000g = 0.0197 kg
Let's determine the moles of LiCl
0.411 g . 1 mol / 42.394 g = 9.69×10⁻³ moles
Molal concentration (m) = 9.69×10⁻³ mol / 0.0197 kg → 0.492 m