Answer :
Final answer:
The P-V graph represents the relationship between pressure and volume for an expanding gas. The work done on the system, change in internal energy, and energy transferred as heat can be determined using relevant formulas and the First Law of Thermodynamics.
Explanation:
The graph P-V represents the relationship between pressure (P) and volume (V) for 5 moles of a monatomic ideal gas undergoing expansion. To determine the quantities requested:
a) The work done on the system can be found by calculating the area under the curve on the P-V graph. Since the gas is expanding, the work done is negative.
b) The change in internal energy (ΔU) for an ideal gas only depends on temperature and can be calculated using the formula ΔU = γnRT, where γ is the ratio of specific heats, n is the number of moles, R is the gas constant, and T is the change in temperature.
c) The energy transferred as heat (ΔQ) can be determined using the First Law of Thermodynamics, which states that ΔU = ΔQ - ΔW, where ΔW is the work done on the system. Rearranging the equation, ΔQ = ΔU + ΔW.
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