Medium
Why is respiration considered an exothermic reaction? Explain.
(N/A) Respiration is considered an exothermic reaction because energy is released during the process.
$1$. Living organisms require energy to survive, which is obtained from the food we eat.
$2$. During digestion, complex food molecules (like carbohydrates) are broken down into simpler substances like glucose.
$3$. This glucose combines with oxygen in the cells of our body to provide energy.
$4$. Since energy is released in the form of heat (or $ATP$) during this process, it is classified as an exothermic reaction.
The chemical equation for respiration is:
$C_{6}H_{12}O_{6(aq)} + 6O_{2(g)} \to 6CO_{2(g)} + 6H_{2}O_{(l)} + \text{Energy}$
$1$. Living organisms require energy to survive, which is obtained from the food we eat.
$2$. During digestion, complex food molecules (like carbohydrates) are broken down into simpler substances like glucose.
$3$. This glucose combines with oxygen in the cells of our body to provide energy.
$4$. Since energy is released in the form of heat (or $ATP$) during this process, it is classified as an exothermic reaction.
The chemical equation for respiration is:
$C_{6}H_{12}O_{6(aq)} + 6O_{2(g)} \to 6CO_{2(g)} + 6H_{2}O_{(l)} + \text{Energy}$
Explore More
Similar Questions
Write balanced chemical equations for the following reactions:
$(i)$ Calcium carbonate on reaction with hydrochloric acid gives calcium chloride,water and carbon dioxide.
$(ii)$ Nitrogen reacts with hydrogen under pressure to form ammonia.
$(iii)$ Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide.
$(i)$ Calcium carbonate on reaction with hydrochloric acid gives calcium chloride,water and carbon dioxide.
$(ii)$ Nitrogen reacts with hydrogen under pressure to form ammonia.
$(iii)$ Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide.
Medium
View SolutionOn heating blue coloured powder of copper $(II)$ nitrate in a boiling tube,copper oxide (black),oxygen gas and a brown gas $X$ is formed.
$(a)$ Identify the type of reaction.
$(b)$ What could be the $pH$ range of an aqueous solution of the gas $X$?
$(a)$ Identify the type of reaction.
$(b)$ What could be the $pH$ range of an aqueous solution of the gas $X$?
Medium
View SolutionWhy are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Medium
View SolutionCrystals of copper sulphate are heated in a test tube for some time.
$(a)$ What is the colour of copper sulphate crystals:
$(i)$ before heating, and $(ii)$ after heating?
$(a)$ What is the colour of copper sulphate crystals:
$(i)$ before heating, and $(ii)$ after heating?
Medium
View SolutionWrite the balanced chemical equations for the following reactions and identify the type of reaction in each case.
$(a)$ Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at $773 \ K$ to form ammonia gas.
$(b)$ Sodium hydroxide solution is treated with acetic acid to form sodium acetate and water.
$(a)$ Nitrogen gas is treated with hydrogen gas in the presence of a catalyst at $773 \ K$ to form ammonia gas.
$(b)$ Sodium hydroxide solution is treated with acetic acid to form sodium acetate and water.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo