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Gaseous hydrogen contained initially und...

Gaseous hydrogen contained initially under standard conditions in sealed vessel of volume `V = 5 L` was cooled by `Delta T = 55 K`. Find how much the internal energy of the gas will change and what amount of heat will be lost by the gas.

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To solve the problem, we will follow these steps: ### Step 1: Understand the Problem We need to find the change in internal energy (ΔU) and the amount of heat lost (ΔQ) by a sealed vessel of gaseous hydrogen when it is cooled by ΔT = 55 K. ### Step 2: Identify Key Concepts Since the vessel is sealed, the volume (V) remains constant. Therefore, the work done (W) is zero. According to the first law of thermodynamics: \[ \Delta Q = \Delta U + W \] ...
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