Question 891: Thermodynamics & KTG

Question

Heat given to a body, which raises its temperature by 1ºC is known as

Accepted Answer

The heat given to a body, which raises its temperature by 1ÃÂºC (or 1 K), is known as the
thermal capacity
or sometimes referred to as the heat capacity of the body. The correct answer is Option B: thermal capacity.
The thermal capacity (C) of a body is defined as the amount of heat energy (Q) required to raise the temperature of the entire body by one degree Celsius (or one Kelvin). The formula for thermal capacity is given by:
$$ C = \frac{Q}{\Delta T} $$
where
Q
is the heat energy supplied to the body and
ÃÂT
is the change in temperature.
To elaborate on the other options provided:
Option A:
Specific heat
(sometimes called specific heat capacity) is the amount of heat required to raise the temperature of one kilogram of the substance by one degree Celsius (or one Kelvin). It is an intrinsic property of the substance and is expressed in units such as joules per kilogram Kelvin (J/kgÃÂ·K). The formula for specific heat (c) is given by:
$$ c = \frac{Q}{m \Delta T} $$
where
m
is the mass of the substance.
Option C:
Water equivalent
is a somewhat outdated term used to describe a quantity of a substance that would absorb the same amount of heat as a given mass of water. It is based on the high specific heat capacity of water, which has historically been used as a benchmark. It's not precisely a term for the heat to raise the temperature but rather a comparative metric.
Option D:
Temperature gradient
refers to the rate of change of temperature with respect to distance in a particular direction. It is a vector quantity that illustrates how temperature changes from one point to another and is not related to the amount of heat energy that is supplied to a body. Therefore, it does not describe the amount of heat needed to increase the temperature of a body by 1ÃÂºC.

Answer

specific heat

Answer

thermal capacity

Answer

water equivalent

Answer

temperature gradient

Thermodynamics & KTG

Heat given to a body, which raises its temperature by 1ºC is known as

Choose the correct answer: