Introduction to Thermodynamics Quizz 1. Which of the following relations is correct for an adiabatic process? P∆V = 0 ∆U = q ∆q = 0 q = + wQuestion 1 of 102. A system absorbs 500 kJ heat and performs 250 kJ work on the surroundings. The increase in internal energy of the system is: 250 kJ 750 kJ 500 kJ 1000 kJQuestion 2 of 103. The enthalpies of all elements in their standard states are negative zero infinite positiveQuestion 3 of 104. If q amount of heat is supplied to a system, the work done by the system is w . What is the change in internal energy of the system? ΔU = q – w ΔU = q / w ΔU = q + w ΔU = q x wQuestion 4 of 105. The difference between heats of reaction at constant pressure and constant volume for the reaction: -3RT R 2RT 2RQuestion 5 of 106. The internal energy of a system is Kinetic as well as potential energy Potential energy only Unpredictable Kinetic energy onlyQuestion 6 of 107. The process in which no exchange of heat takes place between system and surrounding is known as Adiabatic process Isothermal process Isobaric process Isochoric processQuestion 7 of 108. Evaporation of water is: An exothermic change. A process accompanied by chemical reaction. An endothermic change. A process in which no heat changes occur.Question 8 of 109. Which of the following is a state function? Heat Internal energy Pressure VolumeQuestion 9 of 1010. Tea placed in a closed vessel is an example of isolated system closed system insulated system open systemQuestion 10 of 10 Loading…