MCQ Atmosphere SET 10 1. Which of the following relations is correct for an adiabatic process? P∆V = 0∆U = q∆q = 0q = + wYour comments:Question 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 kJ750 kJ500 kJ1000 kJYour comments:Question 2 of 103. The enthalpies of all elements in their standard states arenegativezeroinfinitepositiveYour comments:Question 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 - wΔU = q / wΔU = q + wΔU = q x wYour comments:Question 4 of 105. The difference between heats of reaction at constant pressure and constant volume for the reaction: -3RTR2RT2RYour comments:Question 5 of 106. The internal energy of a system isKinetic as well as potential energyPotential energy onlyUnpredictableKinetic energy onlyYour comments:Question 6 of 107. The process in which no exchange of heat takes place between system and surrounding is known asAdiabatic processIsothermal processIsobaric processIsochoric processYour comments:Question 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.Your comments:Question 8 of 109. Which of the following is a state function?HeatInternal energyPressureVolumeYour comments:Question 9 of 1010. Tea placed in a closed vessel is an example of isolated systemclosed systeminsulated systemopen systemYour comments:Question 10 of 10 Loading...
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