Question

What is the change in temperature of 25.0 g of silver (specific heat = 0.240 J/g °C) if 85.0 J of heat is added to the silver sample?

A. 13.5 °C
B. 21.5 °C
C. 6.67 °C
D. 3.00 °C
E. 14.2°C

Answer 1

The change in temperature of the silver sample is 14.2 °C.

Step-by-step explanation:

To calculate the change in temperature of the silver sample, we can use the equation:

Q = m × c × ΔT

Where Q is the heat added or removed, m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature.

Plug in the given values:

Q = 85.0 J, m = 25.0 g, c = 0.240 J/g °C

Rearrange the equation to solve for ΔT:

ΔT = Q / (m × c)

ΔT = 85.0 J / (25.0 g × 0.240 J/g °C)

ΔT = 14.2 °C

Therefore, the change in temperature of the silver sample is 14.2 °C. So, the correct answer is E. 14.2°C.