How many calories are required to increase the temperature of 13 g of ethanol from 11 °C to 23 °C? The specific heat of ethanol is 0.59 cal/g °C.
A)83 cal
B)0.63 cal
C)92 cal
D)0.54 cal
E)170 cal

Question

Quizplus · Accepted Answer

The formula to calculate the heat required to increase the temperature of a substance is:

q = m × c × ΔT

Where q is the heat energy, m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature.

Substituting the given values, we get:

q = 13 g × 0.59 cal/g°C × (23°C - 11°C) 
q = 13 g × 0.59 cal/g°C × 12°C 
q = 92.04 cal

Therefore, the answer is C) 92 cal.

How Many Calories Are Required to Increase the Temperature of 13