Question

Which of the following is accurate when discussing specific heat?

Answer 1

Answer Choices: ⬇️

◯ A. The specific heat of a gas can be measured at constant volume only.

◯ B. Specific heat values for liquids will never vary for different ranges of temperature.

◯ C. Specific heat values for solids will never vary for different ranges of temperature.

◯ D. The specific heat of a gas can be measured at constant pressure.

Correct Answer: ⬇️

✅ D. The specific heat of a gas can be measured at constant pressure.

Explanation: ⬇️

"If the gas is allowed to expand while being heated so that its pressure remains constant, the specific heat is called the specific heat at constant pressure." (PF Physical Science 2.2 READING ASSIGNMENT)

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Answer 2

The accurate description of specific heat is that it is the amount of heat required in order to raise the temperature of 1 gram of a specific substance by one degree Celsius. For example, the specific heat of water is 4.18 J/gC which means that 4.18 J of heat is required to raise the temperature of 1 gram of water by 1 degree C.