Beaker a contains 100 ml of water at a temperature of 25 °c. beaker b contains 100 ml of water at a temperature of 60 °c. which of the following statement is true?
a. beaker a has lower kinetic energy than beaker b
b. beaker a has higher thermal energy than beaker b
c. beaker a has higher potential energy than beaker b
d. beaker a has lower potential energy than beaker b
e. beaker a has higher kinetic energy than beaker b

Only option A is correct. Beaker A has lower kinetic energy than beaker B.

Explanation:

Step 1: Data given

Beaker 1 has a volume of 100 mL at 25 °C

Beaker B has a volume of 100 mL at 60 °C

Thermal energy = m*c*T

Thermal energy beaker A = 100 grams*4.184 * 25°C

Thermal energy beaker B = 100 grams *4.184*60°C

⇒ Since both beakers contain the same amount of water, the thermal energy depends on the temperature.

Since beaker B has a higher temperature, it has a higher thermal energy than beaker A

When we heat a substance, its temperature rises and causes an increase in the kinetic energy of its constituent molecules. Temperature is, in fact, a measure of the kinetic energy of molecules.

This means beaker B has a higher kinetic energy than beaker A

Potential energy doesn't depend on temperature. this means the potential energy of beaker A and beaker B is the same.

a. Beaker A has lower kinetic energy than beaker B. This is correct.

b. Beaker A has higher thermal energy than beaker B. This is false.

c. Beaker A has higher potential energy than beaker B. This is false.

d. Beaker A has lower potential energy than beaker B. This is false

e. Beaker A has higher kinetic energy than beaker B. This is false.

a and c

c is 100% but i am confused in a

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid