Q1 an ideal gas is expanded isothermally from 20 l to 30 l, Ask an Expert

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Q1. An ideal gas is expanded isothermally from 20 L to 30 L. throughout this process, 6 J of energy is expended by the external mechanism that expanded the gas. Which of the following statements is correct?

a. 6 J of energy flow from surroundings into the gas.

b. No energy flows into or from the gas because this process is isothermal.

c. None of the above statements is correct.

d. 6 J of energy flow from the gas into surroundings.

Q2. Which of the planets fits the following description: "a solid, cool surface, with occasional dust clouds and a thin CO2 atmosphere"?

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