Sublimation occurs when a substance changes directly from gas to solid True Fals

Question

Sublimation occurs when a substance changes directly from gas to solid True False A gas does not have a fixed volume or pressure In fact most gases at room temperature and pressure behave approximately as an ideal gas. True False The number of molecules m the gas is large and the average separation between them is small compared with their dimensions. True False The pressure is proportional to the number of molecules (N) per unit volume (V) and to the average translational kinetic energy (1/2 mv^2) of a molecule. True False The First Law of Thermodynamics states: 'The internal energy of a system changes from an initial value (U_i) to a final value (U_t) due to heat, Q, and work W ." True False In an isobaric process, the temperature changes. True False In an isobaric process, no heat is exchanged with the surroundings, that is, no energy is gamed or lost by the system. True False The Second Law of Thermodynamics can be stated m the following way: "It is impossible for heat to flow spontaneously from a colder body to a hotter body." True False An isolated system does not interact with its surroundings; however, the internal energy of the isolated system changes. True False

Explanation / Answer

(7) False

Sublimation is the transition of the substance from solid to gas

(8) False

(9)False

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