The Amount of Heat Needed to Change the Temperature of an Object

question 16

Short Answer

The amount of heat needed to change the temperature of an object can be calculated using the following equation: $Q = m c _ { p } \Delta T$ where $Q =$ amount of heat in calories
$m =$ mass of object in grams
$c _ { p } =$ specific heat of object
$\Delta T =$ change in temperature in $C ^ { \circ }$ What is the appropriate unit for $c _ { p }$ if the preceding equation is to be homogeneous in units? a. $\mathrm { cal }$

b. $g$

c. $\frac { \mathrm { cal } } { \mathrm { g } \cdot { } ^ { \circ } \mathrm { C } }$

d. $\mathrm { cal } / \mathrm { g }$

---

Definitions:

Hypertonic Fluid

A solution having a higher concentration of solutes than the cytoplasm of a cell, leading to the cell losing water by osmosis.

Merocrine

A type of exocrine secretion where cells secrete substances without losing cytoplasm.

Apocrine Gland

A type of gland found in various parts of the body that secretes substances (often involved in scent and sweat) into hair follicles.

Hyponychium

The area of epidermis beneath the free edge of the nail plate, forming a barrier to protect the nail bed.