How many calories are required to raise the temperature of a 150. g sample of gold from 25 °C to 175 °C? The specific heat of gold is 0.0308 cal/g °C.
A) 693 cal
B) 22500 cal
C) 4.62 cal
D) 130 cal
E) 116 cal

Question

How many calories are required to raise the temperature of a 150. g sample of gold from 25 °C to 175 °C? The specific heat of gold is 0.0308 cal/g °C. 
A) 693 cal 
B) 22500 cal 
C) 4.62 cal 
D) 130 cal 
E) 116 cal

Quizplus · Accepted Answer

The amount of calories required can be calculated using the formula: $ \text{calories} = \text{mass} \times \text{specific heat} \times \Delta\text{temperature} $. Here, mass = 150 g, specific heat = 0.0308 cal/g°C, and $\Delta\text{temperature} = 175°C - 25°C = 150°C$. Thus, calories = $150 \times 0.0308 \times 150 = 693$ cal.

How Many Calories Are Required to Raise the Temperature of a 150