Question

Suppose a 10 mL beaker and a 100 mL beaker are both filled with water, and that the water in both beakers is the same temperature. Which statement below about the water in the two beakers is true?
A.
The two beakers of water contain equal amounts of heat.
B.
The larger beaker of water contains more heat than the smaller beaker.
C.
The smaller beaker of water contains more heat than the larger beaker.
D.
It is not possible to determine which beaker of water contains the most heat because heat cannot be measured.

Answer 1

The larger beaker of water contains more heat than the smaller beaker.

• The formula of heat energy = mcΔT, where m is the mass of the substance, c is the specific het constant and ΔT is the change in temperature.
• Therefore the heat depends on the mass of the substance.
• Hence the beaker with more water filled in it has more heat as compared to the other beaker, thereby option (B) is correct.