Inside a calorimeter, two solutions are mixed and result in an exothermic reaction. Which of the following best illustrates how this reaction affects the water in the calorimeter?

Question

anonymous · Answer

The reaction has no effect on the water. The kinetic energy of the water molecules remains the same.

 The reaction causes the temperature of the water to increase. The kinetic energy of the water molecules increases.

 The reaction causes the temperature of the water to decrease. The kinetic energy of the water molecules decreases.

 The reaction causes the temperature of the water to increase. Then, the water loses heat to the surroundings and the kinetic energy of the water molecules decreases.

anonymous · Answer

im thinking B or D

jfraser · Answer

it's the same idea as your last question. You know the reaction is exothermic, so you know where the energy is moving

anonymous · Answer

well exo means exit right? so wouldnt that mean its D? i just like having my work double checked

joannablackwelder · Answer

It would cause the temp of the water to go up. But usually calorimeters are considered to be isolated systems, so that means we should view it more like B.

anonymous · Answer

and if its isolated the heat cant go to the surroundings correct?

joannablackwelder · Answer

Right.

anonymous · Answer

ok that makes sense.

joannablackwelder · Answer

:)