[{"id":1066254,"question":"The rate determinig step in a multistep reaction is","choices":[{"text":"The slowest step","value":"A"},{"text":"Always the first step","value":"B"},{"text":"Always the last step","value":"C"},{"text":"The fastest step","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066253,"question":"If we double the conentration of a reactant, the rate increases by four times, the reactionis.","choices":[{"text":"First Order","value":"A"},{"text":"Second Order","value":"B"},{"text":"Third Order","value":"C"},{"text":"Zero order","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066252,"question":"On a Boltzmann distribution curve, the activation energy is represented by","choices":[{"text":"The height of the peak","value":"A"},{"text":"The area under the entire curve","value":"B"},{"text":"A vertical line drawn at a specific kinetic energy value","value":"C"},{"text":"The difference between the peak and the X axis","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066251,"question":"On Boltzmann distribution curve, the area under the curve represents.","choices":[{"text":"Activation energy of the rreaction","value":"A"},{"text":"Total numebr f moleclues in the sample","value":"B"},{"text":"Average kinetic energy of the molecules","value":"C"},{"text":"Rate constant of the reaction","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066250,"question":"The order of a chemicla reaction, that is dependent of concentration is.","choices":[{"text":"Second order reaction","value":"A"},{"text":"First order reaction","value":"B"},{"text":"Zeroorder reaction","value":"C"},{"text":"Pseudo first order reaction","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066249,"question":"Considr two reactions with different activation energies at the same temperature, The reaction with the lower activation energy will have","choices":[{"text":"A smaller rate constatn","value":"A"},{"text":"A larger rate constant","value":"B"},{"text":"The same rate constant","value":"C"},{"text":"A rate constant that depends on the enthalpy change","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066248,"question":"Increasing the temperature of a chemical reaction increases the rate of a reaction because.","choices":[{"text":"Both the collision frequency and collision energies of reactant molecules increase","value":"A"},{"text":"Collision frequency of reactatn molecule increases","value":"B"},{"text":"Activation energy increase","value":"C"},{"text":"Activiation energy decrease","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066247,"question":"The rate of reaction .","choices":[{"text":"Increase as the reaction proceeds","value":"A"},{"text":"Decreases as the reaction proceeds","value":"B"},{"text":"Remains the same as the reaction proceeds","value":"C"},{"text":"May decrease or increse as the reaction proceeds","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066246,"question":"AG = 0 indicates","choices":[{"text":"Equilibrium","value":"A"},{"text":"Spontaneity","value":"B"},{"text":"Non Spontaneity","value":"C"},{"text":"Irreversibility","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066245,"question":"Which is not a path function","choices":[{"text":"Work","value":"A"},{"text":"Heat","value":"B"},{"text":"Entropy","value":"C"},{"text":"Temperature","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066244,"question":"An increase in entropy favors ","choices":[{"text":"Non spontaneity","value":"A"},{"text":"Disorder","value":"B"},{"text":"Order","value":"C"},{"text":"Equilibrium","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066243,"question":"A process with increase in entropy and enthalpy is spontaneous at.","choices":[{"text":"High temperature","value":"A"},{"text":"Low temperature","value":"B"},{"text":"All temperature","value":"C"},{"text":"never spontaneous","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066242,"question":"Delta H is negative and Delta S is position then reaction is.","choices":[{"text":"Equilibrium","value":"A"},{"text":"Always spontaneous","value":"B"},{"text":"Temperature depends","value":"C"},{"text":"Non  sppontaneous","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":1066241,"question":"Which of the following causes entropy to increases","choices":[{"text":"Condensation ","value":"A"},{"text":"Freezing","value":"B"},{"text":"Evaporation","value":"C"},{"text":"Crystallization","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066240,"question":"What type of reation has a negative Delta H and Delta S?","choices":[{"text":"Always spntaneous","value":"A"},{"text":"Never spontaneous","value":"B"},{"text":"Spontaneous at low temp","value":"C"},{"text":"Spontaneous at high temp","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":1066239,"question":"Which stepin the Born-Haber cycle is always endothermic","choices":[{"text":"Sublimation ","value":"A"},{"text":"Electron gain enthalpy","value":"B"},{"text":"Hydration","value":"C"},{"text":"Lattice formation","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":1066238,"question":"Born Haber cycle is used to calculate","choices":[{"text":"Bond energy ","value":"A"},{"text":"Heat of hydration","value":"B"},{"text":"Lattice energy","value":"C"},{"text":"Ionization energy","value":"D"},{"value":"E"}],"correctAnswer":3}]