[{"id":1066220,"question":"Which of the following is an extensive property.","choices":[{"text":"Enthalpy","value":"A"},{"text":"Temperature","value":"B"},{"text":"Density","value":"C"},{"text":"Pressure","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066219,"question":"The enthalpy change when one mole of ionic compund is dissolved in water is","choices":[{"text":"Het of hydration","value":"A"},{"text":"Heat of solution ","value":"B"},{"text":"Heat of combustion","value":"C"},{"text":"Heat of atomization","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066218,"question":"If a chemcial reactio has Delta H = -100 kj/mol, it is","choices":[{"text":"Exothermic","value":"A"},{"text":"Endothermic","value":"B"},{"text":"Isothermal","value":"C"},{"text":"Isobaric","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066217,"question":"The enthalpy of solution is","choices":[{"text":"Heat evolved /absorbed when 1 mole of solute dissolves","value":"A"},{"text":"Solute dissolves","value":"B"},{"text":"Always exothermic","value":"C"},{"text":"always endothermic ","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066216,"question":"The enthalpy of sublimation involves.","choices":[{"text":"Solid to gas","value":"A"},{"text":"Solid to liquid","value":"B"},{"text":"Liquid gas","value":"C"},{"text":"Gas to liquid","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066215,"question":"If a chemical reaction has Delta H = -100  kj/mol, it is.","choices":[{"text":"Endothermic","value":"A"},{"text":"Exothermic","value":"B"},{"text":"Isothermal","value":"C"},{"text":"Isobaric","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066214,"question":"The standard enthalpy of atomization of an element is alwyas.","choices":[{"text":"Negative","value":"A"},{"text":"Positive","value":"B"},{"text":"Zero","value":"C"},{"text":"Depend on element","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066213,"question":"Standard condition include all except","choices":[{"text":"298 K","value":"A"},{"text":"0 oC","value":"B"},{"text":"1 atm","value":"C"},{"text":"1 M concentration","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066212,"question":"Which of the following is a state function.","choices":[{"text":"Heat","value":"A"},{"text":"Enthalpy","value":"B"},{"text":"Work","value":"C"},{"text":"Path","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066211,"question":"The standard enthalpy of formation of elements in their standard state is","choices":[{"text":"0","value":"A"},{"text":"-1","value":"B"},{"text":"1","value":"C"},{"text":"25","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066210,"question":"Enthalpy of neutralization of strong acid an strong base is approximately","choices":[{"text":"+57.3 kj/mol","value":"A"},{"text":"-57.3 kj /mol","value":"B"},{"text":"0","value":"C"},{"text":"+5.73 kj/mol","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066209,"question":"The change in internal energy is zero is.","choices":[{"text":"Isothermal process","value":"A"},{"text":"Adiabatic process","value":"B"},{"text":"Exothermic process","value":"C"},{"text":"Endothermic process","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066208,"question":"Enthalpy change of a process is measured under","choices":[{"text":"Constant volume","value":"A"},{"text":"Constant pressure","value":"B"},{"text":"Constant temperature","value":"C"},{"text":"Constant Energy","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066207,"question":"The sign of Delta H during melting is.","choices":[{"text":"Negative","value":"A"},{"text":"Positive","value":"B"},{"text":"Zero","value":"C"},{"text":"Can't be predicted","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066206,"question":"When a bond is formed","choices":[{"text":"Energy is absorbed","value":"A"},{"text":"Energy is released","value":"B"},{"text":"Delta H is always zero","value":"C"},{"text":"No energy change","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066205,"question":"The system that exchanges heat but not mass","choices":[{"text":"Closed","value":"A"},{"text":"Rigid","value":"B"},{"text":"Open","value":"C"},{"text":"Isolated","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066204,"question":"Which law states that enthalpy change is independent of the path taken.","choices":[{"text":"Hess's law","value":"A"},{"text":"Boyle's law","value":"B"},{"text":"Avogadr's law","value":"C"},{"text":"Dalto's law","value":"D"},{"value":"E"}],"correctAnswer":1}]