WebSolution. Pen is a solid as it is rigid and has definite shape and volume. It cannot be compressed with hands. Ink is a liquid at room temperature. It has indefinite shape but definite volume. It can flow and take the shape of the … WebAccording to NCERT Solutions for Class 11 Chemistry Chapter 14, when there is an undesirable change in the surrounding that has harmful effects on plants and animals, it leads to environmental pollution. A pollutant is a substance that causes pollution. We can have pollutants in liquid, solid or gaseous form.

Match List I with List II List IList IIA. Spontaneous processi. Δ H

WebNCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen Q 9.17 Compare the structures of H 2 O and H 2 O 2. Ans: The water molecule will be displayed with a bond angle of 104 .5o has a bent form in gaseous phase. The O-H bond length is 95.7 pm. Structure: Hydrogen peroxide has a non- planar structure both in solid and gas phase. WebClass 11 chemistry important questions with answers are provided here for Chapter 1 Some Basic Concepts of Chemistry. These important questions are based on the CBSE board curriculum and correspond to the most recent Class 11 chemistry syllabus. By practising these Class 11 important questions, students will be able to quickly review all … hugh o\\u0027leary job

NCERT Solutions for Class 11 Chemistry Chapter 14 - Byju

WebFirst law of thermodynamics: When energy moves into or out of a system, the system’s internal energy changes in accordance with the law of conservation of mass. Second law of thermodynamics: The state of the … WebSolution. The correct option is A A−I I,B−I I I,C−I V,D−I. A. Change in free energy (ΔG) is negative for spontaneous processes. B. In isobaric processes, pressure remains same, i.e., ΔP = 0. In isothermal processes, temperature remains same, i.e., Δ T = 0. C. Enthalpy change of the reaction can be given as the difference of bond ... WebChange of any state of water into another by changing the temperature is called the interchangeability of the three states of water. When ice melts, heat is absorbed. When water changes into water vapours, heat is absorbed. When water vapour is condensed to water, heat is given out. When water is solidified to ice, heat is released. holiday inn express in la plata