Mechanical Engineering > GATE 2025 > Heat Transfer
Let a spherical block of ice at -7°C be exposed to atmospheric air at 30°C with the gravitational direction as shown in the figure below. What will be the overall direction of air flow in this situation?
A
Upward
B
Downward
C
NO motion
D
Sideward

Correct : b

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Related Topics

ice block air flow atmospheric air ice GATE mechanical engineering 2025 air movement ice temperature gradient effect upward air flow downward air flow no motion air flow sideward air flow convection heat transfer thermal energy transfer

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