1. Tardigrade
  2. Question
  3. Physics
  4. Consider the following two statements and choose the correct answer. (A) If heat is added to a system its temperature must always increase. (B) If positive work is done by a system in thermodynamic process, its volume must increase.

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Q. Consider the following two statements and choose the correct answer. (A) If heat is added to a system its temperature must always increase. (B) If positive work is done by a system in thermodynamic process, its volume must increase.

EAMCETEAMCET 2007Thermodynamics

Solution:

In cyclic and isothermal process energy supplied to a system does not change temperature of the system. If gas expands $ (\Delta W=\pm \,ve), $ then volume gas system increases. Hence, (B) option (A) is true.