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ThermodynamicsMCQ

A spontaneous endothermic chemical reaction takes place at constant pressure and volume in a well-inThermodynamics Chemistry Question

Question

A spontaneous endothermic chemical reaction takes place at constant pressure and volume in a well-insulated container. As the reaction proceeds, what happens to the temperature of the system and to the internal energy of the reactants as they are transformed into products?

A.

Both the temperature and the reactants’ internal energy increase.

B.

The temperature increases while the reactants’ internal energy decreases.

C.

The temperature decreases while the reactants’ internal energy increases.

✓ Correct
D.

Both the temperature and the reactants’ internal energy decrease.

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