BIOMOLECULES AND ENZYMES

BIOLOGY

ENZYMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what is temperatures job in the change of the rate in a chemical reaction
A
Increasing temperature increases rate of reaction and molecules are moving faster and colliding with each other
B
Increasing temperature decreases rate of reaction and molecules are moving faster and colliding with each other
C
Increasing temperature increases rate of reaction and molecules are moving faster and avoid contact with each other
D
decreasing temperature increases rate of reaction and molecules are moving faster and colliding with each other
Explanation: 

Detailed explanation-1: -Temperature increases the kinetic energy of the molecule and hence more collision between molecules will takes place as velocity or particles gets increased hence reaction rate will increases.

Detailed explanation-2: -An increase in temperature causes a rise in the energy levels of the molecules involved in the reaction, so the rate of the reaction increases. Similarly, the rate of reaction will decrease with a decrease in temperature.

Detailed explanation-3: -In a chemical alteration, the temperature change occurs as a result of the breaking or formation of chemical bonds. When the chemical bonds of the reactants are broken, sometimes excess energy is released, causing heat to be discharged, and leading to an increase in temperature.

Detailed explanation-4: -Energy is absorbed or released in a chemical reaction causing a change in temperature. The production of heat or the increase in the temperature is one of the indicators of exothermic reactions while the absorption of heat or the decrease in the temperature is an indicator of endothermic reactions.

Detailed explanation-5: -The energy and speed of the molecules of reactant increases as the temperature increases. The number of molecules with threshold energy increase which increases the number of effective collisions. Hence the rate of the reaction increases with the increase in the temperature.

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