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What is meant by a positive feedback loop, and could you give an example?

Feedback loops/systems/cycles can be either positive or negative, and it is important to understand the difference between the two. Crucially, in this case, 'positive' does not refer to something which is 'g...
TH
Answered by Tom H. • Geography tutor
7331 Views

How would changing reaction vessel volume and reaction vessel temperature affect the rate of a reaction?

Reaction vessel volume If the reaction vessel volume were to be increased, the concentration inside the vessel would decrease. Therefore the molecules would not be as likely to collide with each other, lower...
JL
Answered by Jakub L. • Chemistry tutor
18829 Views

Solve these simultaneous equations; 2y + x = 8, 4 + 4y = 8x

equation 1: 2y + x = 8 equation 2: 4 + 4y = 8xSolve by substitution ; simplify equation 1 2y + x = 8 x = 8 - 2y substitute into equation 2 4 + 4y = 8(8 - 2y)4 + 4y = 64 - 16y 4 + 20y = 64 20y = 60 y = 3 subs...
JH
Answered by Josephine H. • Maths tutor
4591 Views

Solve 3x + 10 = 10(2x-5)

Multiply out the right hand side so equation becomes 3x+10=20x-50Move x's to one side and numbers to other so 17x = 60x= 60/17
DS
Answered by Devin S. • Maths tutor
4056 Views

Express 126 as a product of its prime factors

(2) (63)-->(2) (3) (21)-->(2) (3) (3) (7)*(1)
TC
Answered by Taner C. • Maths tutor
6207 Views