What color does an acid and a base turn litmus paper? If the chemical or liquid is a base it will turn the paper blue and if it is an acid it will turn it red Edit
The Gradient. The gradient is a vector operation which operates on a scalar function to produce a vector whose magnitude is the maximum rate of change of the function at the point of the gradient and which is pointed in the direction of that maximum rate of change.In rectangular coordinates the gradient of function f(x,y,z) is:If S is a surface of constant value for the function f(x,y,z) then the gradient on the surface defines a vector which is normal to the surface. ApplicationsConduction heat transfer.f S is a surface of constant value for the function f(x,y,z) then the gradient on the surface defines a vector which is normal to the surface. ApplicationsConduction heat transfer.
The divergence of a vector field is the scalar measurement of how much a flow field expands or compresses near a point. The gradient of a scalar function is a vector field. It points in the direction of maximum increase of the function, and the magnitude measures the rate of increase. The curl of a vector field is another vector field quantity. The magnitude measures how much the vector field rotates about each point. The direction is normal to the plane of rotation and is determined by the right hand rule.