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MDCAT - ETEA Past Papers - Chemistry - Chap No 5 Quiz

Attempt 10 MCQs on MDCAT - ETEA Past Papers - Chemistry - Chap No 5 | Quiz 1

1. A system that can exchange both matter and energy with the surroundings is:



2. The sum of all the energies of all the molecules or atoms of a substance is called its:



3. If the work is done by the system on the surroundings and heat is absorbed by the system, the change in internal energy ΔE will be:



4. Calculate the work done when 1 mole of an ideal gas expands from 15 dm³ to 20 dm³ against constant external pressure of 2 atmospheres.



5. One slice of bread with a tablespoon of peanut butter on it contains 20g carbohydrate, 10g protein, and 9g fat. Calculate total energy consumed in this intake:



6. For an endothermic reaction, H represents the enthalpy of reaction. The minimum value for the energy for activation will be:



7. The specific heat of water is:



8. ΔH can be measured indirectly by applying:



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