C7-rates of Reaction &energy Change

Question 1

What is a exothermic reaction

Answer 1

An exothermic reaction gives out energy to the surrounding usually in the form of heat and usually shown by the rise of temperature of the surrounding

Question 2

Whats is an endothermic reaction

Answer 2

Takes in energy from the surroundings usually in the form of heat and usually shown by a fall om temperature of the surrounding

Question 3

What must energy be supplied to break existing bonds and by what process?

Answer 3

Energy must be supplied to break exsting bonds so bond breaking is an endothermic process

Question 4

What must be released when new bonds are formed and by what process?

Answer 4

Energy is realeased when new bonds are formed so bond formation is an exothermic process

Question 5

The higher the temperature the faster the rate of reaction will be.why ?

Answer 5

This is because particles have more energy so can move around faster leading to more successful to frequent collisions

Question 6

What is activation energy

Answer 6

Muimum energy required for a reaction to occur