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← ScienceWhich consequence results when rapid sublimation overwhelms cryopump capacity?
A)Increased system backpressure and contamination✓
B)Enhanced vacuum and reduced thermal load
C)Optimal operational runtime for the pump
D)The increased trapping of volatile hydrocarbons
💡 Explanation
Increased backpressure and system contamination occurs because the pump (cold surface used to condense gases at low temperature) can no longer trap all sublimated vapor; its saturation point is exceeded; therefore, poor vacuum because gas is released rather than maintaining high vacuum.
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