Question

We calculate heat using the equation q = (m)(c)(∆T). If we have 50.0 g of water, how much heat do we need to raise the temperature by 20℃ if the specific heat of water (c) is 4.2 J/g℃ ?

Answer 1

Answer:

To calculate the energy required to raise the temperature of any given substance, here's what you require:

The mass of the material, m.

The temperature change that occurs, ΔT.

The specific heat capacity of the material, c (which you can look up). ...

Here is a source of values of c for different substances:

Q=m×c×ΔT.

Explanation:

Answer 2

Answer:

q=4200 J

Explanation:

q=mcΔt. as m=50g,c=4.2 j/g °c, Δt=20 °c, so q= 50×4.2×20 =4200 J