Question

The amount of heat needed to change the temperature of a substance will vary with the type of substance. This heat quality is called the ____ of the substance. a. sensible heat b. specific heat c. latent heat d. relative heat

Answer 1

B. Specific heat

Step-by-step explanation:

Specific heat is defined as the amount of energy required to raise the temperature of a specified amount of a substance by 1 degree. One common unit is Joules/(M*T), where M is the mass and T is the temperature. Water has a specific heat of 4.186 joule/gram °C. This unit is telling us that 1 gram of water requires 4.186 Joules to raise its temperature by 1 degree C. This is a constant for water, and can be used to help identify a material. The specific heat for iron is 0.451 J/g•°C. It takes far less energy to heat one gram of iron by 1 degree C than it does water. That makes sense. Iron skillets transmit efficiently transmit the heat to the food. Be aware that other units are often found for specific heat. The use of calorie (instead of Joules), the use of moles instead of grams and the use of K or even F inplace of C.