What is one major advantage of transporting gas under refrigeration?
• Behavior of gases when cooled (basic gas laws) • How refrigeration affects volume and density of a gas • Why liquefied gas carriers use very low temperatures for cargo
• Think about what happens to the spacing between gas molecules when temperature decreases. • Consider how cooling a gas changes the amount of product you can fit into a given tank size. • Ask yourself: does refrigeration generally make a gas take up more space or less space for the same amount of product?
• Recall that for gases, at lower temperature (with pressure controlled), the volume tends to decrease rather than increase. • Check which choice describes a condition that would make transport more efficient for ship operators. • Eliminate any option that would make transport less economical (e.g., needing larger tanks for the same amount of cargo).
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