1) A system that can transfer neither matter nor energy to and from is surroundings is called a) a closed system b) an open system c) an isolated system d) an adiabatic process 2) A system in which no thermal energy passes into or out of the system is called a) a open system  b) an closed system c) an isolated system d) an adiabatic process 3) which of the following is not an extensive property a) mass b) density c) volume d) internal energy 4) an intensive property does not depend upon a) quantity of matter b) nature of the substances c) volume d) mass 5) which of the following is an adiabatic process a) dq<0 b) dq>0 c) dq=100 d) dq=0 6) an isobaric takes place at constant a) pressure b) volume c) heat d) temperature 7) which one is correct about change of enthalpy a) w=q+u b) none of these  c) △H= U+w  d) △H= △U+ nR△T 8) which of the following relation is true a) Cp< Cv b) Cp = Cv c) Cp > Cv d) all above 9) for a cyclic process the change in internal energy of the system is a) always positive b) equal to zero c) always negative d) equal to infinity 10) three moles of an ideal gas ( Cv = 5 cal k -1 mol -1 ) at 10.0 atm and 0º are converted to 2.0 atm at 50º. the △U for the process is a) 150 cal b) 750 cal c) 300 cal d) 1500 cal

thermodynamics

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