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armandowww
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A balloon featured with a negligible thermal capacity contains [tex]V_{l}=3l[/tex] of ideal gas and is immersed in a lake (thermal bath) at the depth of [tex]h_{l}=10m[/tex] beneath the lake surface. If it is brought to the depth of [tex]h_{l}=3m[/tex], how much is the heat exchange?