Heat Is Added to a Substance at a Constant Rate

question 64

Multiple Choice

Heat is added to a substance at a constant rate. The substance starts as a solid and is melted; the liquid is heated and vaporized; finally, the vapor is heated. This process is shown in the graph. The specific heat of the liquid can be found by

• A) multiplying the length of B in seconds) by the rate at which heat is added, and dividing by the mass of the substance.
• B) multiplying the length of D in seconds) by the rate at which heat is added, and dividing by the mass of the substance.
• C) dividing the rate at which heat is added by the product of the slope of A and the mass of the substance.
• D) dividing the rate at which heat is added by the product of the slope of C and the mass of the substance.
• E) dividing the rate at which heat is added by the product of the slope of E and the mass of the substance.

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Definitions:

Weight-loss Drugs

Medications prescribed to assist individuals in losing weight, typically used as part of a comprehensive weight management plan.

Sibutramine

A medication previously used to treat obesity, later withdrawn from the market due to cardiovascular risk concerns.

Orlistat

A medication used to treat obesity by inhibiting the absorption of fats from the human diet, thereby reducing caloric intake.

Bariatric Surgery

Surgical procedures performed on the stomach or intestines to induce weight loss, typically in cases of severe obesity.