How much heat (energy) would be required to raise 20 grams of an unknown substance from 23 degrees Celsius to 33 degrees Celsius

H = 0.2c J/Kg°C

Explanation:

m = 20g = 0.02kg, c=?, ∆t = 33-23 = 10

H = mc∆t = 0.02*c*10 = 0.2c J/kg°C

q = 836 J

Explanation:

The amount of heat required to raise 20 grams of an unknown substance from 23° Celsius to 33° Celsius can be computed below

The specific heat capacity of the substance is not given, so let us assume the specific heat capacity of the substance is 4.18J/g°C.

q = mcΔt

where

q = amount of heat energy

m = mass

c = specific heat capacity

Δt = change in temperature

Δt = 33°C - 23°C = 10°C

q = mcΔt

q = 20 g * 4.18 J/g°C * 10° C

g cancel g and °C cancels °C. We are left with joules

q = 836 J