Consider the following statements about thermodynamics. A. The zeroth law of thermodynamics provides the concept of temperature. B. The first law of thermodynamics introduces the concept of internal energy. C. In an isothermal expansion of an ideal gas, the heat supplied is not equal to the work done by the gas. D. The product of an intensive variable and an extensive variable is extensive. E. The ratio of any extensive variable to mass is an extensive variable. Which combination contains only correct statements?
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Question

Consider the following statements about thermodynamics. A. The zeroth law of thermodynamics provides the concept of temperature. B. The first law of thermodynamics introduces the concept of internal energy. C. In an isothermal expansion of an ideal gas, the heat supplied is not equal to the work done by the gas. D. The product of an intensive variable and an extensive variable is extensive. E. The ratio of any extensive variable to mass is an extensive variable. Which combination contains only correct statements?

Options

G1 Physics · Accepted Answer

Statement A is correct. The zeroth law establishes thermal equilibrium and provides the basis for defining temperature. Statement B is correct. The first law introduces internal energy through ΔQ = ΔU+ΔW. Statement C is false for an ideal gas undergoing an isothermal process because ΔU = 0, so the heat supplied equals the work done by the gas: ΔQ = ΔW. Statement D is correct. Multiplying an intensive variable by an extensive variable gives an extensive quantity. Statement E is false. Dividing a…