IB HL Physics. P-V diagrams

/

A tutorial sheet on P-V diagrams from Topic B.4 Thermodynamics is given below.

  1. During a cyclic process on a P-V diagram is the entropy change always zero?
  2. Does the efficiency of a heat engine depend on how rapidly the process is carried out?
  3. State the definition of an adiabatic process.
  4. On a P-V diagram the initial state is (P1,V1) and the final is (P2, V2). If the ratio of specific heats is ɣ and the specific heat capacity at constant volume is cv, find the entropy change between the two states.