THE THERMOMETRIC SUBSTANCE OF AN ABSOLUTE THERMOMETER IS
A. alcohol B. mercury C. helium D. platinum ✓ The answer to the question is: D. platinum An absolute thermometer is a type of thermometer that measures temperature based on an absolute scale, such as the Kelvin scale. The thermometric substance used in an…
A RADIOACTIVE SUBSTANCE HAS A HALF-LIFE OF 3.8 DAYS, CALCULATE ITS DECAY CONSTANT.
To calculate the decay constant of a radioactive substance, we can use the equation: λ = ln(2) / t½ Where: λ is the decay constant, ln is the natural logarithm function, 2 is the constant representing the ratio of the…
WHAT IS MEANT BY THE HALF LIFE OF A RADIOACTIVE SUBSTANCE
The half-life of a radioactive substance refers to the time it takes for half of the atoms in a sample to undergo radioactive decay. It is a fundamental property of radioactive isotopes and is used to describe the rate at…
EXPLORING SUBSTANCE TRANSPORT THROUGH CELL MEMBRANES
Diffusion through the Cell Membrane Diffusion is the process by which particles move from an area of higher concentration to an area of lower concentration until they are evenly distributed throughout a space. This process occurs in solids, liquids, and…
CELLULAR SUBSTANCE MOVEMENT
Introduction The movement of substances into and out of cells is essential for maintaining proper cellular function and ensuring the survival of the organism as a whole. There are two main mechanisms by which substances can move across the cell…
THE CELL AND ITS ENVIRONMENT
DIFFUSION Diffusion is defined as the process by which molecules or ions of a substance (i.e. gases and liquids) move from a region of high concentration to a region of low concentration until they are evenly distributed. The substance involved…