Chemistry Practice MCQ Page 40

Multiple Choice questions for Chemistry in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 3278   A decrease in the internal energy of the system usually accompanied by decrease in
  1. potential energy
  2. kinetic energy
  3. thermal energy
  4. chemical energy
Question: 3279   the energy in the form of heat and work can transfer in and out of a
  1. substance
  2. system
  3. reaction
  4. space
Question: 3280   The total energy transfer between a system and its surroundings is accounted in terms of
  1. temperature change
  2. mass change
  3. heat and work
  4. work done
Question: 3281   When energy in any form transfers from system to the surrounding the total energy of the system remains
  1. conserved
  2. constant
  3. unchanged
  4. levelled
Question: 3282   'Heat losses or work done on the surroundings by the system always result in decrease in
  1. heat
  2. internal energy
  3. temperature
  4. potential energy
Question: 3283   When system expands against an opposing pressure, it
  1. transfers energy
  2. does work
  3. accepts energy
  4. reduces temperature
Question: 3284   When heat is added to the system or work is done on the system, it increases the
  1. internal energy
  2. potential energy
  3. kinetic energy
  4. total energy
Question: 3285   When an opposing force is pushed through a distance, it is always accomplished by
  1. work
  2. rise in temperature
  3. rise in energy
  4. decrease in energy
Question: 3286   If during a chemical reaction the volume remains constant, the change in internal energy of the system is equal tot he exchanged amount of
  1. energy
  2. heat
  3. pressure
  4. mass
Question: 3287   Work done by the expanding gas against external pressure is always
  1. a work
  2. reduces temperature
  3. pressure-volume work
  4. increases temperature
Question: 3288   If no work is done by the gas, all the heat given tot he system result in increase of
  1. internal energy
  2. pressure
  3. temperature
  4. density
Question: 3289   In laboratory as chemical reaction are carried out constant atmospheric pressure, heat exchanged expressed as
  1. qv
  2. qp
  3. q
  4. Q

Answers to the questions of Chemistry on this page

Following list gives the correct choice for the answer of the Chemistry mcqs.
3278 . C       3279 . B       3280 . C       3281 . A       3282 . B       3283 . B       3284 . A       3285 . A       3286 . B       3287 . C       3288 . A       3289 . B      

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