Question

Find the amount of heat (Q) needed to raise the temperature of 5.00g of a substance from 20C to 30C if the specific heat of the substance is 2.01J/gC.

Answer 1

100.5 J

Step-by-step explanation

Given:

Mass of the substance, m = 5.00 g

Temperature change, ΔT = 30 ⁰C - 20 ⁰C = 10 ⁰C

Specific heat of the substance, c = 2.01 J/g⁰C

What to find:

The amount of heat (Q) needed to raise the temperature.

Step-by-step solution:

Using Q = mcΔT

The amount of heat (Q) needed to raise the temperature can be calculated.

Q = 5.00 g x 2.01 J/g⁰C x 10 ⁰C

Q = 100.5 J

Hence, the amount of heat (Q) needed to raise the temperature is 100.5 J