How many calories are required to increase the temperature of 13 g of ethanol from 11 °C to 23 °C? The specific heat of alcohol is 0.588 cal/g °C.
A) 170 cal
B) 0.54 cal
C) 83 cal
D) 0.63 cal
E) 92 cal

Question

How many calories are required to increase the temperature of 13 g of ethanol from 11 °C to 23 °C? The specific heat of alcohol is 0.588 cal/g °C. 
A) 170 cal 
B) 0.54 cal 
C) 83 cal 
D) 0.63 cal 
E) 92 cal

Quizplus · Accepted Answer

To calculate the calories required, use the formula: $ \text{Calories} = \text{mass} \times \text{specific heat} \times \Delta\text{temperature} $. Here, mass = 13 g, specific heat = 0.588 cal/g°C, and $\Delta\text{temperature} = 23°C - 11°C = 12°C$. Thus, Calories = $13 \times 0.588 \times 12 = 91.728 $ cal, which rounds to 92 cal.

How Many Calories Are Required to Increase the Temperature of 13