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Free Online Mock Chemistry Multiple Choice Test on Thermo Dynamics

Sub Category : Thermo Dynamics Test : 15 Time Left :
1)Which of the following is not an endothermic reaction?
(1) Combustion of methane (2) Decomposition of water (3) Dehydrogenation of ethene to ethylene (4) Conversion of graphite to diamond
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2) deltaHfdegree for CO2(g), CO(g) and H2O(g) are – 393.5, 110.5 and -241.8 kJ mol-1 respectively. The standard enthalpy change (inkJ) for the reaction CO2(g) + H2(g) to CO(g) + H2O(g) is(1) 524.1  (2) 41.2  (3) -262.5  (4) -41.2
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3)In thermodynamics a process is called reversible when
(1) surrounding and system change into each other (2) there is no boundary between system and surroundings (3) surroundings are in equilibrium with syatem (4) system change into surroundings spontaneously
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4) Which of the following statement is false?
(1) Work is a state function (2) Temperature is a state function (3) Change of state is completely defined when initial and final states are specified (4) Work appears at the boundary of the solution
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5) One mol of non-ideal gas undergoes a change of state (2.0 atm, 3.0L, 95K) to 4.0 atm, 5.0L, 245K) with a change in internal energy (deltaU) = 30.0 L-atm. The change in enthalpy (deltaH) of the process in L-atm (1) 40.0  (2) 42.3  (3) 44.0  (4) not defined, because pressure is not constant.
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