Question

If the thermal capacity of thermal is infinity, then

• A. heat can never be added to it
• B. heat can never be extracted from it
• C. the temperature of the body cannot be altered by adding or extracting any amount of heat
• D. it has infinite amount of heat

Answer 1

The correct option is C the temperature of the body cannot be altered by adding or extracting any amount of heat

Thermal capacity is the amount of required to increase the temperature by $1^{0}c.$

$Q=C△T$

$C=\frac{Q}{△T}$

As, C is the infinite, $△T$ will have to be , zero , because $\frac{Q}{△T}$ can be infinite only if denominator is zero.

$\therefore$ No matter what amount of heat is added or extracted, the temperature will remain constant.

Hence, OPTION : C.