Question

How much heat is needed to raise the temperature of a 100.0g of water by 85.0 c?

Answer 1

35.7kJ

Step-by-step explanation:

we can calculate the amount of heat energy required , using this formula

Q = mcθ

where.

Q = heat energy (Joules, J)

m = mass of a substance (kg)

c = specific heat capacity (units
`Jkg^(-1) C^(-1)`)

θ = change in temperature (Celcius,C or Kelvin K)

Assume Specific heat capacity (c) of water =
`4200Jkg^(-1) C^(-1)`

mass =0.1 kg

`Q=0.1 kg*4200Jkg^(-1) C^(-1)*85C\\=35700J\\=35.7kJ`