Question

25.0 g of mercury is heated from 25 degrees Celsius to 155 degrees Celsius, and absorbs 455 joules of heat in the process. Calculate the specific heat capacity of mercury

Answer 1

Step-by-step explanation:

specific heat capacity of mercury is approximately 0.14 J/g°C.

we can use the formula:

q = mcΔT

Where:

q = heat absorbed (in joules)

m= mass of the substance(gms)

c = specific heat capacity (in J/g°C)

ΔT = change in temperature (in °C)

In this case, we are given:

q = 455 J

m = 25.0 g

ΔT = (155°C - 25°C) = 130°C

Let’s solve for c by rearranging the formula as:

c = q / (m * ΔT)

Substituting the given values:

c = 455 J/(25.0 g * 130°C)

c = 0.14 J/g°C

Hence we can say that the specific heat capacity of mercury is approximately 0.14 J/g°C.