Question

The specific heat of aluminum is 0.90 J/gºC. How much energy is required to raise the temperature of 10 grams of aluminum from 10ºC to 20ºC?

a 111 J
 b 100.9 J
 c 0.009 J
 d 90 J

Answer 1

The energy required to raise the temperature of 10 grams of aluminum from 10°C to 20°C is calculated using the formula Q = mcΔT, resulting in 90 J. Option d

Step-by-step explanation:

The question pertains to the calculation of energy transfer in heat processes, specifically relating to aluminum. To find out how much energy is required to raise the temperature of a given mass of aluminum, the equation Q = mcΔT is used, where Q is the heat added, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

For this example:

m = 10 g

c = 0.90 J/g°C

ΔT = 20°C - 10°C = 10°C

Plugging in the values, we get:

Q = 10 g * 0.90 J/g°C * 10°C = 90 J

Therefore, the amount of energy required is 90 joules.

The correct answer to the student's question is d) 90 J.

Answer 2

Q = mCΔT
Q is heat in Joules, m is mass, C is specific heat, and ΔT is change in temp

Q = (10g)(.90)(10 degrees) = 90 J

d. 90 J