Question

in $q = mc\delta t$, what does $\delta t$ represent?
a the final temperature of the substance.
b the total change in temperature of the substance.
c the initial temperature of the substance.
d the specific heat capacity of the substance.

Explanation:

In the formula \(Q = mc\Delta T\) (where \(Q\) is the heat energy transferred, \(m\) is the mass of the substance, \(c\) is the specific heat capacity), \(\Delta T\) is calculated as \(T_{final}-T_{initial}\). This represents the total change in temperature. Option A is incorrect as it's not just the final temperature. Option C is wrong as it's not the initial temperature. Option D is incorrect because \(c\) is the specific heat capacity.

Answer:

B. The total change in temperature of the substance.