Question

1.)how much heat is needed to raise the temperature of 200g of water by 95°c? the specific heat of water is 4.18j/g°c. 200g×4.18j/g°c×95°c = 794420j 2.) a jeweler is trying to release a diamond from its setting in a 15g silver ring. if the temperature has to change by 12°c how much heat is needed? the specific heat of silver is 0.235j/g°c

Explanation:

Step1: Identify the formula

The formula for heat \(Q = mc\Delta T\), where \(m\) is mass, \(c\) is specific heat, and \(\Delta T\) is temperature change.

Step2: Substitute values for silver

Given \(m = 15g\), \(c=0.235J/g^{\circ}C\), \(\Delta T = 12^{\circ}C\).
\(Q=15\times0.235\times12\)

Step3: Calculate

\(Q = 15\times0.235\times12=42.3J\)

Answer:

\(42.3J\)